Load driving circuit

Details Load driving circuit Load driving circuit

2006-03-07

2010-06-29

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S108000

Reexamination Certificate

active

07746126

ABSTRACT:
To provide a load drive circuit that has a satisfactory phase characteristic and can be realized as a low-price LSI chip. A series circuit of nonlinear resistive elements (P2and N3) and switch elements (N2and P3) is inserted between control input terminals (GP1and GN1) of output elements (P1and N1) of a final amplifier (AMP0) and an output terminal (OUT) of the load drive circuit. The nonlinear resistive element has a nonlinear characteristic in which a resistance value decreases as an applied voltage value increases and the resistance value increases as the applied voltage value decreases. The switch elements are switching-controlled to selectively come into an ON state only in a high-electric potential period or a low-electric potential period of an input signal according to whether the output element is arranged on a high-electric potential side or a low-electric potential side in the final amplifier.

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International Search Report for PCT/JP2006/304393, dated Apr. 11, 2006.

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