Power supplies

Details Power supplies Power supplies

1990-10-18

1993-10-05

Voeltz, Emanuel T.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363132, 363 58, 361 90, 361111, 307106, H02M 7537

Patent

active

052511219

ABSTRACT:
Power supplies for generating a stream of electrical pulses in which successive pulses have opposite polarities. The pulses are formed and outputted from pulse generating circuitry which has two complementary pairs of MOSFETs arranged in an H-bridge configuration. Other major components of the power supply are voltage regulators for supplying positive and negative operating pulses with selected, precisely controlled voltages to the driver and watchdog circuits for disenabling the pulse outputting circuitry if: the frequency of the operating pulses deviate from a selected range, the widths of the operating pulses exceed a selected maximum, extraneous pulses are present, or the voltage of the operating pulses falls below or exceeds selected maximums. In one important application, the power supply is employed to drive the emitter of an infrared radiation source.

REFERENCES:
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patent: 3811776 (1974-05-01), Blau, Jr.
patent: 3987303 (1976-10-01), Stoft et al.
patent: 4011859 (1977-03-01), Frankenberger
patent: 4107771 (1978-08-01), Anderson et al.
patent: 4204768 (1980-05-01), N'Guyen
patent: 4213103 (1980-07-01), Birt
patent: 4268751 (1981-05-01), Fritzlen et al.
patent: 4270164 (1981-05-01), Wyman et al.
patent: 4371785 (1983-02-01), Pederson
Reliable, Accurate CO.sub.2 Analyzer for Medical Use, Sloman, Hewlett Packard Journal, Sep. 1981, pp. 3-21.

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