Abstract: A clamp circuit is provided. The clamp circuit includes a major Gallium Nitride (GaN) transistor, a miller GaN transistor, and a capacitor circuit. The major GaN transistor (10) includes a major gate, a major drain, and a major source coupled to a first node. The miller GaN transistor includes a miller gate coupled to a second node, a miller drain coupled to the major gate, and a miller source coupled to the first node. The capacitor circuit is coupled between the major drain and the second node.

Abstract: A package structure is provided. The package structure includes a substrate, a plurality of active components, a plurality of separated metal parts and an encapsulation material. The substrate has a first surface and a second surface. Each active component has a first surface and a second surface. Each metal part has a first surface and a second surface. The first surface of each active component is connected to the first surface of the substrate. The first surface of one metal part is connected to the second surface of one active component. Each metal part extends to connect to the first surface of the substrate. The encapsulation material covers the first surface of the substrate and surrounds the active components and the metal parts. The second surface of each metal part and the second surface of the substrate are exposed from the encapsulation material.

Abstract: An integrated circuit includes a first power transistor, a second power transistor, and an isolator. The first power transistor is integrated with a first driving circuit. The second power transistor is integrated with a second driving circuit. The isolator provides a first control signal and a second control signal to the first power transistor and a second power transistor respectively, according to an input signal.

Abstract: A power circuit includes a power transistor and a driving circuit. The power transistor draws a power current from a loading node according to a voltage of a driving node and stops drawing the power current according to an over-current signal. The driving circuit includes a high-side transistor, a low-side transistor, a charge pump, a pre-driver, and a desaturation circuit. The high-side transistor provides a supply voltage to the driving node according to a high-side voltage of a high-side node. The low-side transistor couples the driving node to the ground according to a first internal signal. The charge pump generates a high-side voltage that exceeds the supply voltage according to the first internal signal. The pre-driver generates the first internal signal according to a control signal. The desaturation circuit determines that the power current exceeds a threshold to generate the over-current signal.

Abstract: A power circuit includes a voltage converter, an UVLO circuit, a power transistor, and a driving circuit. The voltage converter converts an external voltage to a supply voltage according to an UVLO signal. The UVLO circuit generates the UVLO signal when the external voltage exceeds a threshold. The power transistor draws a power current according to a voltage of a driving node. The driving circuit includes a high-side transistor, a low-side transistor, a charge pump, and a pre-driver. The high-side transistor provides the supply voltage to the driving node according to a high-side voltage of a high-side node. The low-side transistor couples the driving node to a ground according to a first internal signal. The charge pump generates a high-side voltage that exceeds the supply voltage according to the first internal signal. The pre-driver generates the first internal signal according to a control signal.

Abstract: A power circuit includes a power transistor and a driving circuit. The power transistor sinks a current according to a driving voltage. The driving circuit includes a driver which includes a high-side transistor, a low-side transistor, a high-side driver, and a first pre-driver. The high-side transistor provides a low voltage to the driving voltage according to a high-side voltage. The low-side transistor pulls the driving voltage to a ground according to a control signal. The high-side driver includes a plurality of N-type transistors and provides a high voltage to the high-side voltage according to the control signal. The high voltage exceeds an operational gate voltage of the N-type transistors.

Abstract: An integrated circuit includes a first power transistor, a second power transistor, and an isolator. The first power transistor is integrated with a first driving circuit. The second power transistor is integrated with a second driving circuit. The isolator provides a first control signal and a second control signal to the first power transistor and a second power transistor respectively, according to an input signal.

Abstract: A power circuit includes a power transistor and a driving circuit. The power transistor draws a power current from a loading node according to a voltage of a driving node and stops drawing the power current according to an over-current signal. The driving circuit includes a high-side transistor, a low-side transistor, a charge pump, a pre-driver, and a desaturation circuit. The high-side transistor provides a supply voltage to the driving node according to a high-side voltage of a high-side node. The low-side transistor couples the driving node to the ground according to a first internal signal. The charge pump generates a high-side voltage that exceeds the supply voltage according to the first internal signal. The pre-driver generates the first internal signal according to a control signal. The desaturation circuit determines that the power current exceeds a threshold to generate the over-current signal.

Abstract: A power circuit includes a voltage converter, an UVLO circuit, a power transistor, and a driving circuit. The voltage converter converts an external voltage to a supply voltage according to an UVLO signal. The UVLO circuit generates the UVLO signal when the external voltage exceeds a threshold. The power transistor draws a power current according to a voltage of a driving node. The driving circuit includes a high-side transistor, a low-side transistor, a charge pump, and a pre-driver. The high-side transistor provides the supply voltage to the driving node according to a high-side voltage of a high-side node. The low-side transistor couples the driving node to a ground according to a first internal signal. The charge pump generates a high-side voltage that exceeds the supply voltage according to the first internal signal. The pre-driver generates the first internal signal according to a control signal.

Abstract: A regulator converting an input voltage into a supply voltage includes a first differential amplifier, a second differential amplifier, a pass element, and a feedback voltage divider. The first differential amplifier includes a reference voltage with a feedback voltage to generate a first output voltage and a first inverse output voltage. The second differential amplifier compares the first output voltage and the first inverse output voltage to generate a second output voltage. The pass element passes an output current from the input voltage to the supply voltage according to the second output voltage. The feedback voltage divider divides the supply voltage by a feedback factor to generate the feedback voltage.

Abstract: A power circuit includes a power transistor and a driving circuit. The power transistor sinks a current according to a driving voltage. The driving circuit includes a driver which includes a high-side transistor, a low-side transistor, a high-side driver, and a first pre-driver. The high-side transistor provides a low voltage to the driving voltage according to a high-side voltage. The low-side transistor pulls the driving voltage to a ground according to a control signal. The high-side driver includes a plurality of N-type transistors and provides a high voltage to the high-side voltage according to the control signal. The high voltage exceeds an operational gate voltage of the N-type transistors.

Abstract: A power circuit includes a power transistor flowing a power current to a ground according to the voltage of a driving node, a driving circuit, and a pre-driver. The driving circuit includes a high-side transistor providing a supply voltage to the driving node according to a high-side voltage of a high-side node, a low-side transistor coupling the driving node to the ground according to a first internal signal, and a charge pump coupled to the high-side node and the driving node and generating the high-side voltage that exceeds the supply voltage according to the first internal signal. The pre-driver generates the first internal signal according to a control signal. The pre-driver is configured to improve driving capability of the control signal.

Abstract: A regulator converting an input voltage into a supply voltage includes a first differential amplifier, a second differential amplifier, a pass element, and a feedback voltage divider. The first differential amplifier includes a reference voltage with a feedback voltage to generate a first output voltage and a first inverse output voltage. The second differential amplifier compares the first output voltage and the first inverse output voltage to generate a second output voltage. The pass element passes an output current from the input voltage to the supply voltage according to the second output voltage. The feedback voltage divider divides the supply voltage by a feedback factor to generate the feedback voltage.

Abstract: A power circuit includes a power transistor flowing a power current to a ground according to the voltage of a driving node, a driving circuit, and a pre-driver. The driving circuit includes a high-side transistor providing a supply voltage to the driving node according to a high-side voltage of a high-side node, a low-side transistor coupling the driving node to the ground according to a first internal signal, and a charge pump coupled to the high-side node and the driving node and generating the high-side voltage that exceeds the supply voltage according to the first internal signal. The pre-driver generates the first internal signal according to a control signal. The pre-driver is configured to improve driving capability of the control signal.

Abstract: A power circuit includes a power transistor sinking a power current according to a voltage of a driving node and a driving circuit which includes a first bootstrap circuit, a second bootstrap circuit receiving a second internal signal to generate a first internal signal, a pre-driver receiving a third internal signal to generate the second internal signal, and a hysteresis circuit receiving a control signal to generate the third internal signal with a hysteresis. The first bootstrap circuit includes a high-side transistor providing a supply voltage to the driving node according to a high-side voltage, a low-side transistor electrically connecting the driving node to the ground according to the first internal signal, and a charge pump generating the high-side voltage exceeding the supply voltage according to the first internal signal and the second internal signal.

Abstract: A power circuit includes a power transistor sinking a power current according to a voltage of a driving node and a driving circuit which includes a first bootstrap circuit, a second bootstrap circuit receiving a second internal signal to generate a first internal signal, a pre-driver receiving a third internal signal to generate the second internal signal, and a hysteresis circuit receiving a control signal to generate the third internal signal with a hysteresis. The first bootstrap circuit includes a high-side transistor providing a supply voltage to the driving node according to a high-side voltage, a low-side transistor electrically connecting the driving node to the ground according to the first internal signal, and a charge pump generating the high-side voltage exceeding the supply voltage according to the first internal signal and the second internal signal.

Abstract: A power circuit includes a power transistor flowing a power current to a ground according to the voltage of a driving node, a driving circuit, a first pre-driver, a second pre-driver, and a hysteresis circuit. The driving circuit includes a high-side transistor providing a supply voltage to the driving node according to a high-side voltage of a high-side node, a low-side transistor coupling the driving node to the ground according to a first internal signal, and a charge pump coupled to the high-side node and the driving node and generating the high-side voltage that exceeds the supply voltage according to the first internal signal. The first pre-driver receives a second internal signal to generate the first internal signal. The second pre-driver receives a third internal signal to generate the second internal signal. The hysteresis circuit receives a control signal to generate the third internal signal.

Abstract: A switching circuit includes a normally-on switch, a normally-off switch, a current compensating unit and a current sharing unit. Each of the normally-on switch and the normally-off switch include a first terminal, a second terminal and a control terminal respectively. The first terminal of the normally-off switch is connected to the second terminal of the normally-on switch. The second terminal of the normally-off switch is connected to the control terminal of the normally-on switch. The current compensating unit is connected to the normally-on switch and configured to generate a compensating current when a leakage current of the normally-on switch is smaller than the leakage current of the normally-off switch. The current sharing unit is connected to the normally-off switch and configured to share the leakage current of the normally-on switch when the leakage current of the normally-on switch is larger than the leakage current of the normally-off switch.

Abstract: A switching circuit includes a normally-on switch, a normally-off switch, a current compensating unit and a current sharing unit. Each of the normally-on switch and the normally-off switch include a first terminal, a second terminal and a control terminal respectively. The first terminal of the normally-off switch is connected to the second terminal of the normally-on switch. The second terminal of the normally-off switch is connected to the control terminal of the normally-on switch. The current compensating unit is connected to the normally-on switch and configured to generate a compensating current when a leakage current of the normally-on switch is smaller than the leakage current of the normally-off switch. The current sharing unit is connected to the normally-off switch and configured to share the leakage current of the normally-on switch when the leakage current of the normally-on switch is larger than the leakage current of the normally-off switch.

Abstract: A method for compensating images, applied to an e-paper display where pixels are arranged as a pixel array displaying N-level grayscale images. Standard images from a first standard image to an N-th standard image which respectively correspond to a first-level grayscale value to the N-th-level grayscale value are provided. The e-paper display respectively displays the standard images. Actual grayscale values of each pixel of the e-paper display, from a first actual grayscale value corresponding to the first standard image to the N-th actual grayscale value corresponding to the N-th standard image, are obtained. Each m-th actual grayscale value is compared with an m-th-level grayscale value to generate an m-th compensating matrix, wherein m is a positive integer from 1 to N. Therefore, compensating matrices from a first compensating matrix to an N-th compensating matrix are generated and used to compensate an input image of the e-paper display.