Control circuit for multipurpose input terminal

Details Control circuit for multipurpose input terminal Control circuit for multipurpose input terminal

1988-05-31

1989-10-24

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307572, 307578, 307582, 307482, H03K 1756, H03K 1760

Patent

active

048764620

ABSTRACT:
A control circuit provided in association with a multi-purpose input node is provided with an input signal detecting circuit for relaying a middle voltage level from the multipurpose input node to the internal circuit, a charge-pump circuit activated in the presence of a high voltage level for producing an extremely high voltage level, a transferring circuit coupled between the multipurpose input node and the charge-pump circuit, and a gate transistor coupled between the multipurpose input node and the output node, and the extremely high voltage level is supplied to not only the gate transistor but also the transferring circuit, so that the high voltage level is fully transferred to the charge-pump circuit, thereby allowing the gate transistor to transfer the high voltage level to the output node without any reduction in voltage level.

REFERENCES:
patent: 4527074 (1985-07-01), Donaldson et al.

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