Voltage generator circuit

Details Voltage generator circuit Voltage generator circuit

1998-11-23

2000-03-28

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323312, 323316, 327540, 36518909, G05F 316, H03L 500, G11C 1140

Patent

active

060436379

ABSTRACT:
A voltage generator circuit includes a loading transistor circuit having a source terminal supplied with a power source voltage, a transfer gate circuit having a source terminal connected with the drain terminal of the loading transistor circuit, a clamping circuit having a drain terminal connected with the drain terminal of the transfer gate circuit and a source terminal which is grounded, and an inverter circuit which is provided between the drain terminal of the clamping circuit and the gate terminal of the transfer gate circuit. The gate terminal of the loading transistor circuit is supplied with a CEB (Chip Enable) signal. The gate terminal of the clamping circuit is connected with the drain terminal of the loading transistor circuit. The drain terminal of the loading transistor circuit, the source terminal of the transfer gate circuit and the gate terminal of the clamping circuit are all connected together to operate as an output terminal of the voltage generator circuit for outputting a constant voltage. When voltage as highs as the logical threshold voltage of the inverter circuit is applied to the drain terminal of the clamping circuit, the transfer gate circuit is turned OFF by turnover of the inverter circuit, and the clamping circuit is protected from the application of an extraordinarily high voltage and junction destruction.

REFERENCES:
patent: 4628250 (1986-12-01), Lee
patent: 5396114 (1995-03-01), Lee et al.
patent: 5444659 (1995-08-01), Yokokura

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