Negative voltage genarating circuit

Details Negative voltage genarating circuit Negative voltage genarating circuit

1994-12-28

1997-03-25

Krishnan, Aditya

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

H02M 318

Patent

active

056148143

ABSTRACT:
A negative voltage generating circuit includes an oscillating unit constructed of a ring oscillator for outputting a pulse signal with a high frequency and a polarity inverting unit in which the pulse signal is inputted to charge negative voltage. This negative voltage generating circuit is miniaturized and outputs a stable negative voltage. Further, the negative voltage to be outputted can be controlled by varying a resistance value through a control of an FET in a voltage controlling unit.

REFERENCES:
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patent: 5216588 (1993-06-01), Bajwa et al.
patent: 5301097 (1994-04-01), McDaniel
patent: 5357416 (1994-10-01), Kitano et al.
P. Bradshaw, "Applications of the ICL7660--a CMOS High Efficiency Voltage Converter", Southcon/81 Conference Record, pp. 10-3/1-7, 1981.
S.L. Black, "555 as switching regulator supplies negative voltage", Electronics, p. 101, May 15, 1975.

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