Electricity: power supply or regulation systems – Remote sensing
Patent
1978-03-27
1979-11-27
Pellinen, A. D.
Electricity: power supply or regulation systems
Remote sensing
323 20, 323 22T, G05F 156
Patent
active
041763092
ABSTRACT:
To permit low differences between regulated output voltage and unregulated input voltage, for example in the order of only 200mV, a control loop formed of a serially connected PNP transistor 11, a reference voltage generator 15, a voltage divider 13 connected across the regulated output, and a comparator-amplifier 14 comparing the output taken from the voltage divider 13 and the reference and providing an error control signal has a second control loop connected thereto which includes a transistor and a current sensing resistor connected to the base of the control transistor 11 and a second comparator comparing the actual current flow through the transistor 18 and the error signal to stabilize the control transistor. A switching network 16 can be additionally connected to modify or affect the error signal applied to the second control loop.
REFERENCES:
patent: 3548291 (1970-12-01), Heaslett
patent: 3585491 (1971-06-01), Petersen
patent: 3986100 (1976-10-01), Beierholm et al.
patent: 4025843 (1977-05-01), Parker
patent: 4055794 (1977-10-01), Ickes
patent: 4079445 (1978-03-01), Hufnagel
Honig Gunther
Kiencke Uwe
Schulz Alfred
Pellinen A. D.
Robert & Bosch GmbH
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