Converter

Communications: electrical – Audible indication – Percussion-type sound producer

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179 1SA, 364607, 328 14, 84 126, 340347AD, H03K 1302

Patent

active

043664709

ABSTRACT:
A converter includes a voltage selector which employs IGFETs as voltage switching elements, and a controller which controls the IGFETs. Each of the IGFETs in the voltage selector is made either the P-channel type or the N-channel type, depending upon a voltage level to be thereby switched and a level of a binary signal supplied from the controller. As a result, a voltage of comparatively great level can be switched by a binary signal of small level amplitude.

REFERENCES:
patent: 3945000 (1976-03-01), Suzuki
patent: 3984830 (1976-10-01), Buchanan
patent: 4173916 (1979-11-01), Inoue
patent: 4236437 (1980-12-01), Howell
Hamade "IEEE Journal of Solid-State Circuits", vol. SC-B, No. 6, Dec. 1978, pp. 785-791.

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