Abstract: A clock and data recovery device includes an equalizer that compensates for channel loss of input data, a phase detector that compares a data output from the equalizer with a clock fed back and outputs an up signal and a down signal, a charge pump that operates according to the up signal and the down signal and outputs a control signal, a loop filter that removes high-frequency components included in the control signal, a voltage controlled oscillator that changes a frequency of the clock and outputs a clock with changed frequency, and a data phase adjuster that synchronizes the clock output from the voltage controlled oscillator and the data output from the equalizer by adjusting a phase of the data output from the equalizer by receiving the up signal and the down signal output from the phase detector.

Abstract: A heating apparatus for an aerosol-forming article includes: a housing that accommodates at least a portion of the aerosol-forming article; a power circuit that delivers power to a heat-generating body for heating the aerosol-forming article; a controller that controls the power circuit to adjust the heating temperature of the aerosol-forming article; a temperature sensor that detects the temperature of the housing and outputs an analog signal corresponding to the detected temperature; and an oscillator that outputs the signal of the frequency corresponding to the magnitude of the analog signal output by the temperature sensor; wherein the controller detects a user's puff or adjusts the heating temperature of the aerosol-forming article based on the frequency of the signal output by the oscillator.

Abstract: A 3-level buck-boost converter includes: an inductor connected in series between a switching node and a ground terminal; an output capacitor connected between an output terminal from which an output voltage is output and a ground terminal; a first switch connected between an input terminal to which an input voltage is input and a top plate node; a second switch connected between the top plate node and the switching node; a third switch connected between the switching node and a bottom plate node; a fourth switch connected between the bottom plate node and the output terminal; a flying capacitor connected between the top plate node and the bottom plate node; balancing switches connected between the switching node and the balancing node; a top balancing capacitor connected between the input terminal and the balancing node; and a bottom balancing capacitor connected between the balancing node and the output terminal.

Abstract: A phase locked loop includes a main voltage-controlled oscillator for which an oscillation frequency is adjusted by an offset current and a control voltage (Vctrl), the offset current being set by an offset current setting code (VCO_CON), a phase frequency detector configured to adjust the control voltage by comparing an output signal (mCLK) of the main voltage-controlled oscillator and an input data signal (Data), and an offset current setter configured to generate the offset current setting code for setting the offset current of the main voltage-controlled oscillator. The offset current setter includes n sample voltage-controlled oscillators configured to generate n signals with different frequencies, respectively, and n counters configured to compare frequencies of each of the signals (sCLK) output from the n sample voltage-controlled oscillators and the input data signal, and is configured to generate the offset current setting code based on a comparison result of the n counters.

Abstract: The switching converter equipped with negative current tracking control includes a switching transistor whose drain is connected to an input power supply, a rectifying transistor whose drain is connected to a source of the switching transistor and whose source is connected to a ground, an inductor having one end connected to the source of the switching transistor and the drain of the rectifying transistor, an output capacitor having a first end connected to the other end of the inductor and a second end connected to a ground, a PWM controller that outputs a PWM control signal to a gate of the switching transistor and a gate of the rectifying transistor, a zero current detector that detects zero crossing of an inductor current flowing through the inductor, and a negative current tracking controller that variably adjusts an offset of the zero current detector.

Abstract: The present disclosure relates to a wafer level chip scale package with a rhombus shape which includes a semiconductor chip with a rhombus shape and a solder ball array including a plurality of solder balls formed on one surface of the semiconductor chip. Among four interior angles of the semiconductor chip, two of the four interior angles facing each other in a short diagonal direction are approximately 120°, and two of the four interior angles facing each other in a long diagonal direction are approximately 60°.

Abstract: A switching converter equipped with an adaptive frequency control function includes a switching unit, an inductor, an output capacitor, a zero crossing detector that receives a signal of the switching node and a signal of the output terminal, that are fed back, and detects whether or not an inductor current flowing through the inductor crosses a zero point, a DCM/CCM detector that outputs an operation section discrimination signal that discriminates a current operation section by dividing the current operation section into a discontinuous conduction mode (DCM) operation section and a continuous conduction mode (CCM) operation section according to a zero crossing detection signal output by the zero crossing detector, a variable oscillator that changes and outputs a clock frequency signal according to the operation section discrimination signal output by the DCM/CCM detector, and a controller that controls switching of switches constituting the switching unit according to the clock frequency signal output by th

Abstract: An electromagnetic induction heating apparatus for heating an aerosol-forming article of an electronic cigarette includes: a power supply unit configured to supply DC power; a power amplifier including a switch unit comprising a pair of transistor switches having a differential structure and receiving DC power from the power supply unit, and a parallel-structured LC resonant network including a resonant inductor connected to an output terminal of the switch unit and electromagnetically inductively coupled with an inductor component of a heat-generating body for heating the aerosol-forming article of the electronic cigarette, and a resonant capacitor connected in parallel to the resonant inductor; and a driving unit configured to adjust a temperature of the heat-generating body by adjusting an operating frequency of the switch unit of the power amplifier to control an amount of current of the resonant inductor electromagnetically inductively coupled with the inductor component of the heat-generating body.

Abstract: A clock and data recovery device includes an equalizer that compensates for channel loss of input data, a phase detector that compares data output from the equalizer and a fed back clock and outputs an up signal and a down signal, a charge pump that operates according to the up signal and the down signal to output a control signal, a loop filter that removes a high-frequency component included in the control signal output from the charge pump, a voltage-controlled oscillator that changes a frequency of the clock and outputs the clock according to the control signal from which the high-frequency component is removed, and a voltage-controlled oscillator buffer that adjusts a slew rate of the clock output by the voltage-controlled oscillator according to the up signal and the down signal directly received from the phase detector and transmits the clock to the phase detector.

Abstract: An electromagnetic induction heating apparatus for heating an aerosol-forming article of an electronic cigarette includes: a power supply unit configured to supply DC power; a power amplifier including a switch unit comprising a pair of transistor switches having a differential structure and receiving DC power from the power supply unit, and a parallel-structured LC resonant network including a resonant inductor connected to an output terminal of the switch unit and electromagnetically inductively coupled with an inductor component of a heat-generating body for heating the aerosol-forming article of the electronic cigarette, and a resonant capacitor connected in parallel to the resonant inductor; and a driving unit configured to adjust a temperature of the heat-generating body by adjusting an operating frequency of the switch unit of the power amplifier to control an amount of current of the resonant inductor electromagnetically inductively coupled with the inductor component of the heat-generating body.

Abstract: A clock and data recovery device includes an equalizer that compensates for channel loss of input data, a phase detector that compares a data output from the equalizer with a clock fed back and outputs an up signal and a down signal, a charge pump that operates according to the up signal and the down signal and outputs a control signal, a loop filter that removes high-frequency components included in the control signal, a voltage controlled oscillator that changes a frequency of the clock and outputs a clock with changed frequency, and a data phase adjuster that synchronizes the clock output from the voltage controlled oscillator and the data output from the equalizer by adjusting a phase of the data output from the equalizer by receiving the up signal and the down signal output from the phase detector.

Abstract: A buck-boost converter includes a first switch connected between an input terminal that receives an input voltage and a first terminal of an inductor, a second switch connected between the first terminal of the inductor and an output terminal that outputs an output voltage, a third switch connected between a second terminal of the inductor and a ground terminal, and a fourth switch connected between the second terminal of the inductor and an inverting input terminal that receives an inverted input voltage obtained by inverting the input voltage.

Abstract: The present disclosure relates to a wafer level chip scale package with a rhombus shape which includes a semiconductor chip with a rhombus shape and a solder ball array including a plurality of solder balls formed on one surface of the semiconductor chip. Among four interior angles of the semiconductor chip, two of the four interior angles facing each other in a short diagonal direction are approximately 120°, and two of the four interior angles facing each other in a long diagonal direction are approximately 60°.

Abstract: A 3-level converter includes: an inductor connected in series between a switching node and an output terminal from which an output voltage is output, an output capacitor connected between the output terminal and a ground terminal, a first switch connected between an input terminal to which an input voltage is input and a top plate node, a second switch connected between the top plate node and the switching node, a third switch connected between the switching node and a bottom plate node, a fourth switch connected between the bottom plate node and a ground terminal, a flying capacitor connected between the top plate node and the bottom plate node, balancing switches connected between the switching node and a balancing node, a top balancing capacitor connected between the input terminal and the balancing node, and a bottom balancing capacitor connected between the balancing node and a ground terminal.

Abstract: A 3-level buck-boost converter includes: an inductor connected in series between a switching node and a ground terminal; an output capacitor connected between an output terminal from which an output voltage is output and a ground terminal; a first switch connected between an input terminal to which an input voltage is input and a top plate node; a second switch connected between the top plate node and the switching node; a third switch connected between the switching node and a bottom plate node; a fourth switch connected between the bottom plate node and the output terminal; a flying capacitor connected between the top plate node and the bottom plate node; balancing switches connected between the switching node and the balancing node; a top balancing capacitor connected between the input terminal and the balancing node; and a bottom balancing capacitor connected between the balancing node and the output terminal.

Abstract: An electromagnetic induction heating apparatus for heating an aerosol-forming article of an electronic cigarette includes: a power supply unit configured to supply DC power; a power amplifier including a switch unit composed of a pair of transistor switches having a differential structure and operating by receiving the DC power from the power supply unit, and a LC resonant network composed of a resonant inductor connected to an output terminal of the switch unit and electromagnetically inductively coupled with an inductor component of a heat-generating body for heating the aerosol-forming article of the electronic cigarette and a resonant capacitor connected in parallel to the resonant inductor; and a driving unit configured to adjust an operation of the power amplifier to adjust a temperature of the heat-generating body.

Abstract: The present disclosure relates to a switch capacitor converter with high efficiency and a small size. The converter according to one aspect of the present disclosure is provided for receiving an input voltage through an input terminal and supplying an output voltage through an output terminal, the converter comprising: a first capacitor; a second capacitor; a third capacitor; and a switch network for changing a connection relationship between the input terminal, the output terminal, the first capacitor, the second capacitor, and the third capacitor. A ratio of the input voltage to the output voltage implemented in the converter is selectable from 4:1, 3:1, or 2:1 depending on an operation of the switch network.

Abstract: A method of charging a battery by a charging system comprising a master charging circuit and N (N is a natural number) slave charging circuits. The method includes: sourcing a first current to a single-wired bus by the master charging circuit; absorbing (sinking) a second current from the single-wired bus by the N slave charging circuits connected to the single-wired bus; identifying a single-wired bus voltage formed on the single-wired bus at a particular time point by the master charging circuit; and identifying the number of slave charging circuits based on the single-wired bus voltage by the master charging circuit.

Abstract: A single-inductor multi-output converter that includes a charge pump unit, a current supply unit, a first output unit, and a second output unit. The charge pump unit may be positioned between a first node and a second node, and may store electric charges flowing into the first node and the second node through a first capacitor, or may supply electric charges to the second node. In addition, the current supply unit may: include an inductor positioned between an input node and the first node; build up current in the inductor in the first time period; and transfer the current of the inductor to the charge pump unit in the second time period.

Abstract: The present invention provides a buck-boost converter including a converter power stage, a first mode control unit, and a second mode control unit. In the buck-boost converter, the converter power stage may include at least one inductor and a plurality of switching devices. Further, the first mode control unit may operate the converter power stage in a buck mode and regulate an output voltage of the converter power stage as a first voltage. Further, the second mode control unit may operate the converter power stage in a boost mode or a buck-boost mode, and regulate an output voltage of the converter power stage as a second voltage higher than the first voltage.