Abstract: A ceramic transformer level driving circuit mainly aims to transform a low voltage signal to another low voltage signal through an amplified signal to drive a medium voltage system. It includes a control unit to generate a resonant frequency and output phase signal waveforms, a waveform transformation unit to provide phase signals and perform waveform phase transformation for the phase signal waveforms, and a medium voltage driving circuit which includes a floating level unit and a driving unit which receives a medium voltage electric input. The driving unit actuates opening and closing at different time to enable the floating level unit to output a voltage floating level thereby to drive a ceramic transformer to control the medium voltage system through a low voltage level.

Abstract: A method for controlling power supply through multiple modulation modes aims to control an inverter of a selective characteristic through a cycle control signal of varying modulation modes to ensure that the inverter and the load on the rear end function in a reliable characteristic range and prevent the load from aging too quickly. The method includes generating a cycle control signal which includes ON-Time and OFF-Time, and adding a regulation energy of varying amplitudes or frequencies in the OFF-Time to provide varying modulation modes by mixing duty cycle, frequency modulation and amplitude modulation. The power supply can be controlled with a high reliability and a wide dynamic range.

Abstract: A method and apparatus for modulating light of CCFLs that couples frequency alteration and pulse width modulation (PWM) approaches to change output voltage and current of a piezoelectric transformer to modulate the luminosity of a CCFL. The invention includes a PWM controller to alter operation cycle and a frequency control IC to change resonant frequency that drives the piezoelectric transformer at different operation cycles thereby to modulate the luminosity of the CCFL and improve the life span of the piezoelectric transformer.

Abstract: A piezoelectric power supply has a piezoelectric transformer circuit configuration which is alterable flexibly according to varying loading power requirements. It includes a control unit (control IC), a power switch (MOSFET) and an inductor to drive a piezoelectric transformer unit to actuate a high voltage and power load such as a cold cathode fluorescent lamp. The piezoelectric transformer unit consists of a plurality of piezoelectric transformers coupled in parallel. The specification of the piezoelectric transformers (single sheet piezoelectric transformers or low level laminated piezoelectric transformers) and parallel coupling number may be altered according to the required power of the load to change the voltage and current output by the piezoelectric transformers.

Abstract: A method and apparatus for modulating light of CCFLs that couples frequency alteration and pulse width modulation (PWM) approaches to change output voltage and current of a piezoelectric transformer to modulate the luminosity of a CCFL. The invention includes a PWM controller to alter operation cycle and a frequency control IC to change resonant frequency that drives the piezoelectric transformer at different operation cycles thereby to modulate the luminosity of the CCFL and improve the life span of the piezoelectric transformer.

Abstract: The present invention provides an inverter circuit with a power factor corrector. A power source provides a power signal of alternating current. An electromagnetic interference filtering unit and a rectifier unit receive the power signal of alternating current, filter and rectify the power signals, and then output a half-wave power signal of direct current. A voltage adjusting unit provides a voltage adjusting value. A power factor corrector receives the half-wave power signal of direct current, connected to the voltage adjusting unit, converting the voltage of the half-wave power signal of direct current in accordance with the voltage adjusting value, and then outputting a power signal. An inverter steps up the voltage and outputting a power signal with high voltage to a load which is subsequently connected to the inverter, such that the power signal with high voltage has preferred corrected power factor and adjusts the brightness of the load.

Abstract: The present invention provides an inverter circuit with a power factor corrector. A power source provides a power signal of alternating current. An electromagnetic interference filtering unit and a rectifier unit receive the power signal of alternating current, filter and rectify the power signals, and then output a full-wave/half-wave power signal of direct current. A voltage adjusting unit provides a voltage adjusting value. A first power factor corrector receives the full-wave/half-wave power signal of direct current, connected to the voltage adjusting unit, converting the voltage of the full-wave/half-wave power signal of direct current in accordance with the voltage adjusting value, and then outputting a power signal. An inverter steps up the voltage and outputting a power signal with high voltage to a load which is subsequently connected to the inverter, such that the power signal with high voltage has a preferred corrected power factor.

Abstract: The present invention is a lamp current control circuit applied to a high voltage outputting combination for providing uniformity of lamp current of at least one load. Voltage dividing units of the lamp current control circuit receive high power signals output by the high voltage outputting combination and redistributes high power signals to lower power signals. A signal-processing unit receives the lower power signals distributed by the voltage-dividing units, compares the lower power signals with each other, and outputs the compensation power signal to the control unit. The compensation power signal is compared with a reference power signal of a variable unit, and a comparison power signal is output, thereby uniformly distributing the lamp current inside the load. For the above reason, it prevents power loss inside the load or damage to the load from abnormal lamp currents.

Abstract: The present invention is a lamp current control circuit applied to a high voltage outputting combination for providing uniformity of lamp current of at least one load. Voltage dividing units of the lamp current control circuit receive high power signals output by the high voltage outputting combination and redistributes high power signals to lower power signals. A signal-processing unit receives the lower power signals distributed by the voltage-dividing units, compares the lower power signals with each other, and outputs the compensation power signal to the control unit. The compensation power signal is compared with a reference power signal of a variable unit, and a comparison power signal is output, thereby uniformly distributing the lamp current inside the load. For the above reason, it prevents power loss inside the load or damage to the load from abnormal lamp currents.

Abstract: A piezoelectric transformation driving apparatus to drive a plurality of high voltage systems through a low voltage system includes a control unit and a driving unit to output first driving signals of the same phase and same frequency to drive a transformation unit, a plurality of piezoelectric units and loads. A ceramic transformer level driving circuit may be included to drive the transformation unit, the piezoelectric units and loads through a voltage floating level so that a medium voltage system may be controlled by a low voltage level.

Abstract: The present invention relates to a multi-period cycle-alternative switching mode power supply control device and its control method, and the device comprises: a power transfer control unit, a dimming bias control, a burst timing control, and a steering logic; and the method is a power control method that uses a burst timing control to produce an ON_OFF (High_Low) control timing, and after regulated power with a different amplitude is added to the OFF period of the burst period between two ON_OFF periods, two or more mixed periods are used to regulate the timing to a highly reliable and a broad dynamic range. The device of the invention can effectively control certain power transfer components of specific nature and assure that those components and the loading at the rear end can operate more efficiently in a reliable range of a specific nature.

Abstract: An arc discharge protection apparatus to prevent arc discharge from occurring in a high voltage output zone caused by abnormal conditions includes an electrode plate to absorb high voltage arc discharge signals released by a voltage boosting unit in the high voltage output zone. A voltage switch unit receives the high voltage arc discharge signals absorbed by the electrode plate and transforms to low voltage arc discharge signals. A rectification unit receives and rectifies the low voltage arc discharge signals and outputs an arc hybrid wave. A trigger unit detects the arc hybrid wave and outputs a trigger signal to stop operation of the control unit or driving unit, thereby prevents arc discharge from causing damage to the surrounding elements resulting from accumulation of heat or sparks.

Abstract: An arc discharge protection apparatus to prevent arc discharge from occurring in a high voltage output zone caused by abnormal conditions includes an electrode plate to absorb high voltage arc discharge signals released by a voltage boosting unit in the high voltage output zone. A voltage switch unit receives the high voltage arc discharge signals absorbed by the electrode plate and transforms to low voltage arc discharge signals. A rectification unit receives and rectifies the low voltage arc discharge signals and outputs an arc hybrid wave. A trigger unit detects the arc hybrid wave and outputs a trigger signal to stop operation of the control unit or driving unit, thereby prevents arc discharge from causing damage to the surrounding elements resulting from accumulation of heat or sparks.

Abstract: A method for coordinating built-in bluetooth modules mainly establishes a coordinating program in a bluetooth keyboard module to coordinate a HUB, a wireless keyboard control equation and process procedures of a host controller interface (HCI) resided in the bluetooth keyboard module. The coordinating program enables the wireless keyboard control equation to generate a simulated keyboard signal to enable a conventional keyboard to start operation smoothly. Meanwhile, the coordinating program coordinates the wireless keyboard control equation and the HCI process procedures to enable future operating systems equipped with a bluetooth driver program to directly use the receiving end of the bluetooth keyboard to form a standardized specification.

Abstract: The present invention discovers the layup ofi. a multimaterial fully isotropic laminate that exhibits a concomitant stiffness isotropy in extension, shear, bending, and twisting; andii. a multimaterial quasi-homogeneous anisotropic laminate that has identical stiffness anisotropy in extension and bending as well as in shear and twisting.In addition, layups of the multimaterial fully isotropic laminate lead to a substantially new category of the single-material fully isotropic laminate.Although these laminate layups have distinctive applications as load-carrying structures, the approaches and models that generate these layups are closely related.

Abstract: The present invention discovers the layup ofi. a multimaterial fully isotropic laminate that exhibits a concomitant stiffness isotropy in extension, shear, bending, and twisting; andii. a multimaterial quasi-homogeneous anisotropic laminate that has identical stiffness anisotropy in extension and bending as well as in shear and twisting.In addition, layups of the multimaterial fully isotropic laminate lead to a substantially new category of the single-material fully isotropic laminate.Although these laminate layups have distinctive applications as load-carrying structures, the approaches and models that generate these layups are closely related.

Abstract: The present invention pertains to the layup of laminates that possessesi. concomitant stiffness isotropy in extension, shear, bending, and twisting; andii. identical stiffness anisotropy in extension and bending as well as in shear and twisting.Although both laminate layups have distinctive applications as load-carrying structures, the approaches and models that generate these layups are closely related.