Semiconductor Components Industries, LLC

Remi Gerber

Michael Bairanzade

A charge pump controller () comprises a configurable pump capacitor (). A charge pump controller () controls the charge supplied to a load () to be less than the charge stored on the pump capacitor ().

Charge pump controller and method therefor

In one embodiment, a switch capacitor controller () is configured to use a drive signal () to drive the switched capacitor () with a signal having a time dependent transition time.

Switched capacitor controller and method therefor

In one embodiment a switched capacitor dc-dc converter uses the load current to assist in determining a supply configuration to use to form the output voltage.

DC-to-DC converter and method therefor

A circuit for reducing leakage current through one or more output transistors ( ) includes a capacitor circuit ( ) and additional circuitry. The capacitor circuit ( ) stores and discharges a charge, thus providing a current having a limited duration, which is related to a discharge time of the capacitor circuit. In one embodiment, the additional circuitry includes a current source circuit ( ), an amplifier circuit ( ), and one or more transistors ( ). The current source circuit is temporarily activated by the current from the capacitor circuit, and provides a second current to the amplifier circuit. The amplifier circuit amplifies the second current, and the amplifier current is used to activate the transistors ( ). When activated, the transistors draw current from the control terminals (e.g., the bases) of the output transistors ( ) after the output transistors have been switched off, thus reducing leakage currents through the output transistors.

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Pins-Justaret, France

Remi Gerber