Abstract: A synchronous buck converter is provided in which a replica transistor has its drain coupled to a drain of the low-side switch transistor. A current sensing amplifier drives a scaled current into the replica transistor such that the drain-to-source voltage of the replica transistor substantially equals the drain-to-source voltage of the low-side switch. The replica transistor is much smaller than the low switch transistor such that the replica transistor's on resistance is higher by a scale factor Kf as compared to the on resistance for the low-side switch transistor.

Abstract: A buck-boost power converter and a control circuit for the buck-boost converter. The buck-boost power converter includes a first power switch and a second power switch coupled in series between an input port and a reference ground, and a third power switch and a fourth power switch coupled in series between an output port and the reference ground. The control circuit receives a pulse skipping control signal and a zero-crossing indication signal, and controls the second power switch and/or the third power switch to turn on when the pulse skipping control signal controls the buck-boost power converter to enter into a pulse skipping mode and the zero-crossing indication signal indicates that an output inductor current of the buck-boost power converter crosses zero.

Abstract: A two-stage multi-phase switching power converter operates its first stage during nominal operation responsive to a nominal clocking frequency and operates its second stage during the nominal operation responsive to a second-stage clocking frequency that is greater than the nominal clocking frequency. In response to an application of a load, the first stage temporarily increases its clocking frequency from the nominal clocking frequency and implements a fixed duty cycle.

Abstract: Controller and method for a power converter. For example, the controller includes a first controller terminal coupled to a gate terminal of a transistor. The transistor further includes a drain terminal and a source terminal, and the first controller terminal is at a first voltage as a first function of time. Additionally, the controller includes a second controller terminal coupled to the source terminal. The second controller terminal is at a second voltage as a second function of time. Moreover, the controller includes a third controller terminal coupled to a first resistor terminal of a resistor. The resistor further includes a second resistor terminal, and the third controller terminal is at a third voltage as a third function of time. Also, the controller includes a fourth controller terminal coupled to a first capacitor terminal of a capacitor.

Abstract: The present disclosure is directed to a high power factor quasi resonant converter. The converter converts an AC power line input to a DC output to power a load, generally a string of LEDs. The power input is fed into a transformer being controlled by a power switch. The power switch is driven by a controller having a shaping circuit. The shaping circuit uses a current generator, switched resistor and capacitor to produce a sinusoidal reference voltage signal. The controller drives the power switch based on the voltage reference signal, resulting in a sinusoidal input current in a primary winding of the transformer, resulting in high power factor and low total harmonic distortion for the converter.

Abstract: The invention relates to a voltage converter comprising: an isolated DC/DC converter circuit having at least one first isolation transformer and switches whose opening and closing successions with at least one duty ratio make it possible to transmit energy through the isolated DC/DC converter by way of said first transformer; a circuit for regulating the input voltage of the isolated DC/DC converter circuit; the regulating circuit being configured to control the output voltage of the isolated DC/DC converter circuit by modifying the voltage delivered to the isolated DC/DC converter circuit, the duty ratio of the isolated DC/DC converter circuit remaining constant, and in said converter, the output of the regulating circuit is connected to a branch of the isolated DC/DC converter circuit comprising said first transformer.

Abstract: A step-up DC-DC power converter comprises a primary side circuit and a secondary side circuit coupled through a galvanic isolation barrier. The primary side circuit comprises a positive and a negative input terminal for receipt of an input voltage and an input capacitor coupled between the positive and negative input terminals and the secondary side circuit comprises an output capacitor chargeable to a converter output voltage between a first positive electrode and a second negative electrode. The galvanic isolation barrier comprises a first capacitor coupled in series with the positive input terminal of the primary side circuit and the first positive electrode of the output capacitor; and a second capacitor coupled in series with the negative input terminal of the primary side circuit and the second negative electrode of the output capacitor.

Abstract: Disclosed in the present invention is a hybrid back-to-back direct current transmission system. The system includes an LCC converter and a VSC converter in a back-to-back connection, and a first changeover switch, a second changeover switch, a third changeover switch and a fourth changeover switch. The first changeover switch is connected to a first alternating current system and the LCC converter; the second changeover switch is connected to the first alternating current system and the VSC converter; the third changeover switch is connected to a second alternating current system and the VSC converter; and the fourth changeover switch is connected to the second alternating current system and the LCC converter. In forward power delivery, the first changeover switch and the third changeover switch are closed; and in reverse power delivery, the second changeover switch and the fourth changeover switch are closed.

Abstract: Disclosed herein are systems and methods for electrically coupling energy storage devices to an external load or power source. Examples of such coupling include connecting energy storage devices to an electric power grid using a power conversion system with suitable characteristics including, for example, active/real power and reactive power control capabilities, response time, current, voltage, phase, frequency, fault protection and/or information exchange protocols. The power conversion system can include an inverter.

Abstract: A switching power converter is provided that transitions between output voltage modes over a delay period using at least one of an adaptive resistor and an adaptive reference voltage circuit.

Abstract: A converter configuration has at least one series circuit with at least two series-connected sub-modules which in each case have at least one switch and are installed in each case at a predefined electrical installation position the converter configuration. The converter configuration further has a central unit connected to the sub-modules to control the sub-modules. The sub-modules in each case have a memory in which an identifier, in particular a serial number, uniquely identifying the respective sub-module is stored. The sub-modules in each case have a control device which can forward the stored identifier to the central unit via a communication connection connecting the respective sub-module and the central unit.

Abstract: An appliance includes a driver to drive a load, the load requiring AC power or DC power. A power supply receives one of external AC power, back-up AC power and back-up DC power and outputs at least one of AC power or DC power to the load. An operation mode of the home appliance is one of normal operation when receiving external AC power, normal operation when receiving one of back-up AC power and back-up DC power during a power interruption, and a power save mode when receiving one of back-up AC power and back-up DC power during the power interruption. The power supplies a first power level when there is no power interruption, a second power level when there is power interruption and a third power level when there is power interruption and the power save mode is selected, where the second power level is between the first power level and the third power level. The power save mode is automatically selected when the second power level falls below a reference power level.

Abstract: A switched resonant power converter includes multiple switching transistors, a resonant circuit comprising a capacitor and an inductor, and an auxiliary soft-start bypass circuit that bypasses a default switching path that includes a first switching transistor of the switching transistors, and provides an alternative path through an impedance element. A corresponding control circuit is configured to switch between an operational mode in which the default switching path is periodically activated while the alternative path is deactivated to provide a first frequency-responsive power through the resonant circuit, and a soft-start mode in which the alternative path is periodically activated while the default switching path is deactivated to provide a second frequency-responsive power through the resonant circuit.

Abstract: Power generated by a vibration power generator utilizing an electret is efficiently supplied to a power supply load. A vibration power generator includes a first substrate and a second substrate configured to be moved relative to each other by external vibration while remaining opposite each other, a group of a plurality of electrets arranged in the relative movement direction on one surface side of the first substrate, and a group of electrodes arranged in the relative movement direction on a surface side of the second substrate opposite to the group of electrets, and including a first current collecting electrode and a second current collecting electrode. A power supply load to which power generated by the external vibration is supplied and which has an impedance lower than an internal impedance of the vibration power generator is electrically connected to each of the first and second current collecting electrodes.

Abstract: A piezoelectric element drive circuit includes a piezoelectric element array in which the N number (N is an integer of two or more) of piezoelectric elements respectively having a piezoelectric substance whose thickness is 0.05 ?m to 20 ?m and two electrodes interposing the piezoelectric substance therebetween are connected in series, a first generation circuit that supplies a voltage including an AC component and a DC component to the piezoelectric element array, and a second generation circuit that supplies a voltage including the DC component to the M number (M is an integer of one or more) of connection points within the (N?1) number of connection points between two adjacent piezoelectric elements in the piezoelectric element array.

Abstract: A converter including a first transducer that can lengthen inside at least a first deformation zone and simultaneously shrink inside at least a different second deformation zone. Inner faces of second and third electromechanical transducers are secured respectively, with no degree of freedom, substantially to the first and second deformation zones of the layer of the first transducer. The third transducer differs from the second transducer by the polarization of its layer of piezoelectric material in a different direction to polarization of the layer of piezoelectric material of the second transducer and/or by existence of a separation that mechanically and electrically insulates a first electrode of the third transducer from a first electrode of the second transducer located on a same side of the layer of piezoelectric material.

Abstract: When an electrical primary frequency of power fluctuation of a motor is smaller than a determination threshold value fth1 that is a lower limit frequency of a frequency band where resonance occurs in a circuit including a reactor and a capacitor of a boosting converter or greater than a determination threshold value that is an upper limit frequency of the frequency band where resonance occurs, a value G2 is set as a gain G and when the electrical primary frequency is equal to or greater than the determination threshold value fth1 and equal to or smaller than the determination threshold value, a value G3 at which the upper limit frequency of the resonant frequency band has a low frequency than the determination threshold value fth1 is set as the gain G, and a current control in the boosting converter is executed using the gain G set in this way. The resonance of the circuit including the reactor and the capacitor of the boosting converter can be prevented.

Abstract: A rotating electric machine drive system includes a rotating electric machine and a drive apparatus. The rotating electric machine includes a Y-connected three-phase stator coil. The drive apparatus supplies electric current to the stator coil and thereby drives the rotating electric machine. In a predetermined low-torque region, the drive apparatus supplies the stator coil with the electric current which has a waveform obtained by superimposing a specific harmonic waveform on a first-order harmonic waveform. The specific harmonic waveform is one of third-order and (3+6n)th-order harmonic waveforms, or a harmonic waveform which is obtained by synthesizing at least two of the third-order and (3+6n)th-order harmonic waveforms, where n is a natural number not less than 1. The specific harmonic waveform takes a positive integral value for a positive half cycle of the first-order harmonic waveform and a negative integral value for a negative half cycle of the first-order harmonic waveform.

Abstract: Methods and apparatus for determining a position of a rotor in motor, such as a three-phase motor by determining first and second ones of sectors in which a first one of the magnetic poles of the rotor may be positioned by driving phase pairs with complementary signals and examining a voltage of a floating one of the phases. Embodiments can further include driving first and second currents towards the first and second ones of the sectors and analyzing a time for each of the first and second currents to reach a threshold to identify which of the first and second ones of the sectors is aligned with the first one of the magnetic poles of the rotor.

Abstract: To regulate the electrical output of a generator, a signal is received indicative of at least one characteristic of the electrical output. A first, relatively fast-response sub-controller is configured to provide a first control signal on the basis of the at least one characteristic and a second, relatively slow-response sub-controller is configured to provide a second control signal on the basis of the at least one characteristic. An output provides a combined control signal to adjust the electrical output based on the first and second control signals.

Abstract: A modular power bay for an aircraft comprises a plurality of electric machines, a plurality of inverters, and a control member configured to assign to at least one machine one or more inverters, according to the operational requirements of the plurality of machines. The control member comprises: an observer, able to measure phase currents and phase-neutral voltages of an electrical power supply signal of the machine, an estimator, able to determine a rotor position, based on the measurements of at least one observer, means for communicating, to each of the inverters: a control instruction for each of the inverters for responding to the operational requirement of said machine, measurements of at least one observer, or of the estimated rotor position.

Abstract: A communication system for use in a switching module includes a low-side control block coupled to control switching of a low-side switch of the switching module. The low-side control block is further coupled to be referenced with a low-side reference system ground. A high-side control block is coupled to control switching of a high-side switch of the switching module. The high-side control block is further coupled to be referenced with a floating node of the switching module. During steady state operation, the low-side control block is coupled to send signals during each switching cycle to the high-side control block to turn the high-side switch on and off. A status update is communicated from the high-side control block to the low-side control block through a first single-wire communication link.

Abstract: A power delivery device is disclosed, comprising at least one solar panel, a battery pack comprising at least one battery, and a heater, wherein the device is configured to measure the temperature of the battery pack and power the heater to heat the battery pack if it is too cold for optimal charging.

Abstract: The invention relates to a receiver for production of electricity and heat in solar energy systems comprising focussing optical components wherein, the receiver has at least one surface covered with solar cells for production of electricity and at least one optically selective surface, wherein a greater portion of the surface of the receiver exposed to concentrated sunlight is covered with solar cells, while a greater portion of the surface of the receiver exposed to direct sunlight is covered with an optically selective surface.

Abstract: A curtain wall or roof element, with built in solar panel or heat absorbing layer, and at least one blower for air circulation inside the enclosed device, one or more temperature sensors monitoring the temperature inside and outside the device and a microcontroller activating the blower according to predetermined program to heat or cool the room enclosed by the device. If solar cells or panels are used they will generate electrical power and heat. It is the purpose of this invention to increase the energy harvesting coefficient from the sun's radiation by utilizing the absorbed heat for increasing the temperature in a space enclosed by said device, moreover the smart configuration of the curtain wall will enable to change the system's isolation characteristics by changing its U values. U value of a curtain wall describes the heat isolation characteristics of the device in a numerical form.

Abstract: The invention relates to a testing device for testing a photovoltaic device having an electrical contact area, the testing device comprising: a support base for supporting the photovoltaic device, the support base having a support surface for receiving the photovoltaic device, a measurement device, at least one electrical wire for temporarily establishing an electrical contact between the measurement device and an electrical contact area of the photovoltaic device, the electrical wire is a flexible wire being electrically conductive and arranged to receive the photovoltaic device between the support surface and the flexible wire, at least a portion of the flexible wire abuttingly adapts along its longitudinal extension against the electrical contact area of the photovoltaic device when the photovoltaic device is received by the support surface.

Abstract: A low-noise amplifier (LNA), a folded low-noise amplifier (folded LNA) and an amplifier circuit module are provided. The LNA includes a plurality of radio frequency (RF) input stages, at least one bias transistor and at least one radio frequency (RF) output stage. The bias transistor is connected to the RF input stages to provide a DC bias source to one of the RF input stages for isolating others of the RF input stages. The RF output stage is connected in parallel with the RF input stages, which share an adjustable input inductor.

Abstract: Various methods and circuital arrangements for biasing one or more gates of stacked transistors of an amplifier are possible where the amplifier is configured to operate in at least an active mode and a standby mode. Circuital arrangements can reduce bias circuit standby current during operation in the standby mode while allowing a quick recovery to normal operating conditions of the amplifier. Biasing an input transistor of the stacked transistors can be obtained by using a replica stack circuit.

Abstract: Disclosed herein are power amplification systems that are dynamically biased based on a signal indicative of an envelope of the signal being amplified. The power amplification systems include a power amplifier configured to amplify an input radio-frequency (RF) signal to generate an output RF signal when biased by a biasing signal. The power amplification systems also include a bias component configured to generate the biasing signal based on an envelope signal indicative of an envelope of the input RF signal. The biasing signal can improve or enhance the linearity of the power amplification systems.

Abstract: The present invention provides a frequency-compensated transconductance amplifier, includes an input stage consisting of NMOS transistors M1 and M2, a first-stage active load consisting of PMOS transistors M3 and M4, a first-stage tail current source consisting of a constant current source Iss, a second-stage input transistor consisting of a PMOS transistor M5, a second-stage constant current source consisting of an NMOS transistor M6, a load capacitor consisting of a capacitor CL, and a frequency compensation network formed by sequentially connecting a gain stage GAIN, a compensating resistor Rc and a compensating capacitor Cc in series.

Abstract: A power amplifier module includes an amplifier that amplifies an input signal and outputs an amplified signal, a matching circuit disposed between an output terminal of the amplifier and a subsequent circuit, a choke inductor having a first end to which a power supply voltage is applied and a second end from which power supply is provided to the amplifier through the output terminal of the amplifier, and a first attenuation circuit disposed between the output terminal of the amplifier and the second end of the choke inductor and configured to attenuate a harmonic component of the amplified signal.

Abstract: A ultra-compact coupler designed to sample the actual output power of a power amplifier and which is “VSWR insensitive”, such that reflected power is essentially not coupled to a detector circuit and only forward power is detected and processed. In a first embodiment, a coupler is situated between the final amplifier stage of a power amplifier and an output impedance matching network, and is specially configured for operation in a low impedance environment in conjunction with a detector circuit, thereby substantially reducing the areal size of the coupler. In a second embodiment, a coupler is integrated within an output impedance matching network coupled to the final amplifier stage of a power amplifier so as to share an inductor between the coupler and the output impedance matching network, thereby further substantially reducing the areal size of the coupler.

Abstract: Metal pillars are placed adjacent to NPN transistor arrays that are used in the power amplifier for RF power generation. By placing the metal pillars in intimate contact with the silicon substrate, the heat generated by the NPN transistor arrays flows down into the silicon substrate and out the metal pillar. The metal pillar also forms an electrical ground connection in close proximity to the NPN transistors to function as a grounding point for emitter ballast resistors, which form an optimum electrothermal configuration for a linear SiGe power amplifier.

Abstract: Aspects of the disclosure provide a method and system for power amplifier characterization and digital predistortion. The method includes receiving a test signal including K samples with a sampling rate fS, generating a synthetic test signal including the test signal and a sequence of (N?1) delayed versions of the test signal, generating an under-sampled signal including M samples by sampling, at a sampling rate fS/N, an output signal of a device-under-test (DUT) with the synthetic test signal as an input of the DUT, the M samples of the under-sampled signal including N segments each including K/N samples, and generating a reconstructed signal including the M samples of the under-sampled signal.

Abstract: Aspects disclosed in the detailed description include an envelope tracking (ET) amplifier circuit. The ET amplifier circuit includes ET tracker circuitry configured to provide an ET modulated voltage, which tracks an ET modulated target voltage, to an amplifier circuit(s) for amplifying a radio frequency (RF) signal. The ET amplifier circuit also includes fast switcher circuitry that is activated to provide an alternate current (AC) current to the amplifier circuit(s) when the RF signal includes a higher number of resource blocks (RBs). However, the fast switcher circuitry and its associated control circuitry may incur a processing delay that can cause the fast switcher circuitry to lag behind the ET modulated target voltage. As such, the ET amplifier circuit further includes timing adjustment circuitry to help compensate for the processing delay, thus helping to maintain efficiency of the ET tracker circuitry for improved performance of the ET amplifier circuit.

Abstract: A transimpedance amplifier (TIA) structure includes an input node with a variable inductance component serving to reduce variation in peak amplitude over different gain conditions. According to certain embodiments, an inductor at the TIA input has a first node in communication with a Field Effect Transistor (FET) drain, and a second node in communication with the FET source. A control voltage applied to the FET gate effectively controls the input inductance by adding a variable impedance across the inductor. Under low gain conditions, lowering of inductance afforded by the control voltage applied to the FET reduces voltage peaking. TIAs in accordance with embodiments may be particularly suited to operate over a wide dynamic range to amplify incoming electrical signals received from a photodiode.

Abstract: Embodiments of radio frequency (RF) systems include a plurality of power amplifiers having a primary winding and a secondary winding. Each of the power amplifiers may be configured to process signals of different frequency bands. The primary winding for one power amplifier can be detuned while another power amplifier is being used in a transmit mode. By detuning the power amplifier, power coupling from the transmitting power amplifier can be reduced or eliminated.

Abstract: An amplification circuit includes a first switching circuit that includes input terminals and first and second output terminals and that puts the second output terminal into an open state with respect to the input terminals while selectively putting the first output terminal into a state of being connected to any of the input terminals or selectively puts the second output terminal into a state of being connected to any of input terminals while putting the first output terminal into a state of being open with respect to the input terminals; a matching network that is connected to the first output terminal; an amplifier that is connected to an output side of the matching network; a second switching circuit that is connected to an output side of the amplifier; and a bypass path that electrically connects the second output terminal and an output terminal of the second switching circuit. The amplifier is a variable-gain amplifier.

Abstract: A method for operating a user device includes playing a media content on a screen, detecting a user input for lowering a volume of the media content, and decreasing the volume of the media content in response to the user input, determining whether a user input enters a play control zone after the detection of the user input for lowering the volume, and performing a pause of the media content in response to the user input entering the play control zone. A user device includes a touch screen configured to receive a user input for controlling a volume of the media content, and a controller configured to decrease the volume of the media content in response to a user input for decreasing a volume during playing of the media content, and perform a pause of the media content when the user input enters a play control zone.

Abstract: A speaker driving apparatus can include: a sound pressure feedback unit configured to generate an electrical signal indicative of a sound pressure of a loudspeaker; a compensation unit configured to compensate an input audio signal according to the electrical signal indicative of the sound pressure of the loudspeaker to generate a compensated audio signal, where the sound pressure of the loudspeaker is linearly related to the input audio signal; and an amplification unit configured to amplify the compensated audio signal in order to drive the loudspeaker.

Abstract: The present application provides a multimode transmit power control loop, an electronic device, and a method of adjusting a detected operating level of amplified power output from a power amplifier. The multimode transmit power control loop including a feedback path wherein a feedback path signal is coupled to a feedback detection input of the power amplifier via the feedback path. The feedback path includes a mode selection switch having a control input for selectively applying a different impedance circuit to the feedback path for switching in different attenuation levels, based upon the control input of the mode selection switch identifying one or more of multiple potential operating modes. Operation of the multimode transmit power control loop increases or decreases an operating level of amplified power output from the power amplifier, which is proportional to a present level of attenuation resulting from the particular impedance circuit being applied to the feedback path via the mode selection switch.

Abstract: A phase shifter includes first and second RF terminals, a reference potential terminal; a lumped element LC network connected to the first and second RF terminals and the reference potential terminal, and first and second active semiconductor devices connected to the lumped element LC network and to the reference potential terminal. Each of the first and second active semiconductor devices include a control terminal and first and second output terminals. The lumped element LC network presents a reactance across the first and second RF terminals that shifts the phase of an RF signal as between the first and second RF terminals. The first and second active semiconductor devices are configured to tune the phase shift of the RF signal by controlling the reactance across the first and second RF terminals.

Abstract: In described examples of a magnetically coupled structure on a substrate with an integrated circuit device, the structure includes a first coil in a differential configuration, a second coil located above the first coil in a generally stacked configuration, and a center tap connection to a winding of the second coil. The first coil includes a first differential terminal, a second differential terminal, and metal windings of the first coil. The first coil's metal windings form a continuous spiral electrical path between the first and second differential terminals. The first coil's metal windings include turns and crossing connections between the turns. The turns are fabricated in an integrated circuit metal wiring level, and the crossing connections are fabricated in at least one metal level other than the metal wiring level containing the turns. The center tap is positioned to create a balanced structure.

Abstract: In a bulk acoustic resonator device, at least one additional metal feature is formed on a top surface of the bottom electrode at a location at which the bottom electrode electrical contact will subsequently be formed, thereby thickening the metal at the location below where the piezoelectric material layer will be etched to form the opening for the bottom electrode electrical contact. Consequently, even though some of the metal of the additional metal feature and/or of the bottom electrode will be removed during the process of etching the opening in the piezoelectric material layer, the bottom electrode will always retain sufficient thickness after the piezoelectric material layer is etched.

Abstract: A quartz crystal resonator element includes: a base portion and a pair of vibrating arms which extend from a first end portion of the base portion along a Y-axis direction. The base portion includes a second end portion provided on the opposite side to a first end portion in the Y-axis direction. The base portion is provided with a protrusion in at least one of a third end portion and a fourth end portion which respectively connect both ends of the first end portion and both ends of the second end portion.

Abstract: The present application is directed to a tunable filter system. The system includes a resonator having an inner wall surrounding a cavity. The resonator includes a MEMS device positioned in the cavity including a substrate, a movable plate and a thermal actuator. The thermal actuator is has a first end coupled to the substrate and a second end coupled to the plate. The actuator moves the plate between a first and a second position in relation to the substrate. The application is also directed to a method for operating the tunable filter.

Abstract: An elastic wave apparatus includes a piezoelectric substrate including a main surface and a polarization axis direction having a tilt angle with respect to the main surface, an IDT electrode provided on the main surface, and at least one line on the main surface and between an end edge of the main surface and the IDT electrode. A relationship a?316|cos(?)|?m is satisfied where a denotes a distance from the end edge of the main surface to the IDT electrode and b?28 ?m where a dimension of the line along a direction connecting the end edge to the IDT electrode is defined as a width, b denotes the width of the line when one line is provided, and b denotes the sum of the widths of multiple lines when the multiple lines are provided.

Abstract: A switch module includes a first terminal, first and second filters, and first and second switches. Impedance of the first filter for a signal in a stop band is capacitive. When the first switch is turned OFF, impedance of the first switch is capacitive, and impedance of the first filter seen from an end portion of the first switch connected to the first filter is not in a short state and impedance of the first filter seen from the first terminal is in an open state.

Abstract: Described herein is a power-efficient Gm-C filter, wherein the Gm-C filter includes several operational transconductance amplifiers (OTAs). In an example, at least two of the OTAs share a common bias current. Further, output of one of the OTAs is used to bias another one of the OTAs. Also described herein is a power-efficient clock generator circuit that is configured to output non-overlapping clock signals. The clock generator circuit includes a ring oscillator circuit, which includes several inverter stages. The clock generator circuit is well-suited for controlling operation of switches.

Abstract: A voltage level conversion circuit includes a first voltage level input terminal, a second voltage level input terminal, a first thin film transistor, a second thin film transistor, and a delay control chip configured to output the first voltage level before outputting the second voltage level in a delayed manner. The present disclosure also provides a display panel.