Current pulse producing circuit

Details Current pulse producing circuit Current pulse producing circuit

1984-08-22

1986-05-27

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 22, 363147, H02J 704

Patent

active

045917787

ABSTRACT:
A direct current pulse producing circuit, which can be connected in series with a battery or battery pack to be charged or recharged, or in series with a smoothing circuit of a D.C. power supply, includes Darlington configured transistors forming part of a current amplifier. The pulse producing circuit can be directly connected in series with the battery or battery pack, or the smoothing circuit across a conventional A.C. 117 volt, 60 Hz. voltage source. The direct current pulse producing circuit may be realized as monolithic integrated circuit, and includes a rectifying diode, one electrode of the rectifying diode being formed by at least part of a substrate upon which the circuit is formed. Circuit components are formed in the monolithic circuit which effect the cancelling of undesired current caused by parasitic transistor action resulting from use of the substrate or a portion thereof as an electrode of a rectifying diode. The undesired current is in effect cancelled by a mirror current of substantially equal magnitude and opposite direction with respect to the undesired current.

REFERENCES:
patent: 4504774 (1985-03-01), Hoffman

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