Abstract: An inverter circuit capable of adjusting power factor transforms an AC signal of an electric power source to a pulse DC signal through a rectification unit and divides the duty cycle of minimum input voltage-maximum input voltage-minimum input voltage of the pulse DC signal to a plurality of continuous voltage pulses through an actuation unit so that a transformer outputs an altering duty cycle according to the resonant operation of each voltage pulse and enables a cold cathode lamp to blink in a dark-light-dark fashion to adjust the power factor without adding a power factor adjustment device.

Abstract: A lamp bracket structure for cold cathode lamps includes an anchor dock and a line coupling means. The anchor dock includes a cap, a bottom seat and a connecting section for connecting the cap to the bottom seat and allowing the cap to be moved relative to the bottom seat for opening and closing. The line coupling means is located between the cap and the bottom seat. When the cap is closed, the line coupling means clamps the power cord of a cold cathode lamp, and the line coupling means and the power supply end form electric connection. Thus the circuit of the power cord of the cold cathode lamp and the power supply end may be connected or separated rapidly.

Abstract: The present invention discloses a controller for suppressing the temperature of a screen in order to maintain the ambient temperature of the screen to the level of a predetermined standard temperature as to avoid the screen from being operated at abnormal temperature and lowering its service life. The present invention utilizes a temperature detector unit connected to a control unit for detecting the ambient temperature and outputting a temperature signal to the control unit. The temperature signal is compared with the predetermined standard temperature to determine the magnitude of a cold cathode fluorescent lamp for suppressing the operation of the screen to the best ambient temperature and maintaining the normal service temperature.

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: An improved thin switch aims at reducing overall height of switches without shortening existing compression displacement. It has a trigger assembly which includes an upper button with a bracing section housed in a compartment, a coupling trough, and a lower button with compression section held in the coupling trough without exceeding the anchor portion of the coupling trough. The lower button further has a ram section located between the compression section and the elastic element. The upper button and lower buttons may be deformed as desired to reduce the overall height of the thin switch without affecting existing compression displacement.

Abstract: A silver contact fixing structure for conductive blades aims at providing a retaining force on a silver contact so that the silver contact is more secure and does not break loose when subject to striking. The silver contact is built in a fastening section formed on a conductive blade. The fastening section has at least two fixing zones connecting to each other and a bucking end adjacent to the fixing zones to increase the retaining force between the silver contact and the conductive blade so that the silver contact does not break loose easily thereby increasing the service life thereof.

Abstract: A keyboard key capable of lowering its overall height, which comprises a key cap body and a key cap base being coupled to the keyboard and disposed at the areas of four corners correspondingly having a displacing pillar and elevating groove, and an accommodating section of an electrically conductive cap body disposed at the corresponding central position of the key cap base and the key cap body, and a fixing section and a positioning section coupled to the key cap body and the key cap base respectively, and the displacing pillar and elevating groove are disposed separately at the four corners to reduce the moment of any point of the key cap body pressing the electrically conductive cap body in order to achieve the purposes of effectively lowering the overall height of the key and making the keyboard thin.

Abstract: A current control apparatus for fluorescent lamps adopted for use on high voltage actuated a fluorescent lamp includes a high frequency pulse modulator to provide voltage distribution signals, a power switch which is a MOSFET to output actuation signals, a conversion unit to receive the voltage distribution signals and perform voltage transformation, a piezoelectric transformer to receive the transformed voltage and perform voltage transformer, and the fluorescent lamp connecting to the piezoelectric transformer. The high frequency pulse modulator obtains a feedback current from the output ends of the fluorescent lamps through the signal processor to redistribute current and maintain evenness of the current in the fluorescent lamp.

Abstract: A microswitch that is easy to assemble and manufacture. The microswitch of this invention constantly keeps the connecting section of a resilient component for opening/closing an electric switch in contact with the first conductive section of a first conductive terminal in the main body of the microswitch, and houses a plate-shaped second conductive section with a contact area inside the main body. The first and second conductive sections of the resilient component generate signals preset by the microswitch for an initial signal connection state to a final connection state by a displacement produced by pressing a press button on a contact area of the second conductive terminal in order to increase the distance required for controlling the signal connection and allow the resilient component to have an effective deformation and provide the best resilience of the press button.

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: An integrated power supply apparatus for information appliances includes a power supply input unit, a rectification unit and a voltage boosting unit. The previous design of transforming low voltage to high voltage through a voltage boosting unit (inverter) is changed to transforming to medium voltage through the rectification unit then is transformed to high voltage through the voltage boosting unit. Therefore loss on the low voltage power supply is eliminated, and performance may increase from 64% to about 80% or more. Thus the low voltage power supply module that otherwise should have extra power and greater watts may be shrunk and power supply efficiency may increase.

Abstract: An improved LCD back light panel lamp connecting structure comprises at least one set of cold cathode fluorescent lamps (CCFL), each having its high voltage end and feedback end arranged alternately, and the feedback ends on both sides of the CCFL respectively coupled to two return boards. Such two return boards are coupled to a pulse width modulation (PWM) control unit, so that the two return boards feed back the current to the PWM control unit. The high voltage end of the CCFL is coupled to a transformer.

Abstract: A multiple loads driver circuit equipped with piezoelectric transformation circuits consists of at least one piezoelectric ceramic transformer and two loads connecting to the piezoelectric ceramic transformer(s). Each pair of voltages of the same phase are input to a pair of input ends which have opposite polarization, or the two piezoelectric ceramic transformers group have input ends of opposite polarization or its group assembly output an even number of voltages of opposite phases to input ends of the loads which the feedback ends are grounded respectively.

Abstract: A piezoelectric transformation driving apparatus for driving elements or products to be driven by a high or a low voltage includes a driving module consisting of a pulse-width modulation (PWM) control unit and a single driving unit. The driving module outputs driving signals of the same phase and the same frequency to drive a plurality of transformation units, a plurality of piezoelectric units and a plurality of loads.

Abstract: This invention discloses an arc discharge protection device for preventing an arc discharge effect produced by an abnormal phenomenon in the high-voltage output area. After a voltage conversion unit of this arc discharge protection device receives the high-voltage arc discharge signal in the high-voltage output area, the signal is converted into a low-voltage arc discharge signal. A filter unit is provided to determine the potential and filter the abnormal frequency signal, and then the rectify unit will receive the abnormal frequency signal and output an arc wave clutter after the rectification. A touch control unit will detect the arc wave clutter and output a trigger signal to stop the operation of the control unit or the driving unit, and thus achieving the purpose of preventing sparks or burning caused by the heat accumulated in the peripheral components during the arc discharge effect.

Abstract: A coupling fixture for inserting power supply input sockets includes a coupling frame to couple with a power cord latch clip when an inserting power supply input socket is inserted in a power supply. The coupling frame is sandwiched between the receptacle of the power supply input socket and the power supply, and has an opening to receive the body of the power supply input socket and anchor flanges extended from two sides that have respectively an anchor bore to couple with the power cord latch clip thereby to overcome the problems occurred to the conventional power cord coupling fixtures used on the inserting power supply input sockets.

Abstract: A microswtich that is easy to assemble and manufacture is provided. The microswitch constantly keeps the first conductive section of a resilient component for opening/closing an electrical switch in contact with the first conductive terminal in the main body of the microswitch, and houses a plate-shaped second conductive section with a contact surface inside the main body of the microswtich, so that the second conductive section of the resilient component is driven by a press button on the contact surface of the second conductive terminal to preset the signal from an initial connection state to a final connection state in order to increase the distance required for controlling the signal connection and allow the resilient component to have an effective deformation and provide the best resilience of the press button.

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.