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AssigneeProgrammable Microelectronics Corporation
InventorsGuy S. Yuen, Chinh D. Nguyen
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A switching circuit includes a switch having first and second terminals coupled between a voltage supply and ground potential and having a control terminal coupled to receive a control signal indicative of the output voltage of an associated semiconductor circuit. The switch also includes an output terminal coupled to the well region within which is formed the associated semiconductor circuit. In preferred embodiments, the control signal transitions from a first state to a second state when the output voltage exceeds a predetermined potential. In response thereto, the switching circuit changes the well potential of the associated semiconductor circuit from a first voltage to ground potential, wherein the first voltage is greater than ground potential.
A circuit for switching one or more well regions of a negative charge pump between first and second potentials in response to an output voltage of said negative charge pump, said circuit comprising:
A method for increasing a negative output voltage provided by a negative charge pump formed in an n− well region of an underlying p− substrate, said method comprising the steps of:
Dependencies are inferred from the claim text.