High power and high voltage transistor control circuit

Details High power and high voltage transistor control circuit High power and high voltage transistor control circuit

1979-12-03

1981-09-15

Shoop, William M.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323269, 323277, 323906, 320 17, G05F 144

Patent

active

042900077

ABSTRACT:
A transistorized circuit is used for controlling the flow of current through a high voltage source, such as a battery. The high voltage source must be capable of being tapped at voltages less than the critical voltage of the transistors in the circuit, that is, that voltage at the maximum current through the transistor, above which the breakdown characteristics or maximum power dissipation ability of the transistor is exceeded. A plurality of transistor arrays are connected in series with each other, and each array is connected to a tap on the voltage source. Each array includes parallel connected transistors in sufficient quantity to achieve the desired current flow. The current through each array is made equal by control circuits so that no current flows through the tapped connection to the voltage source. The transistorized circuit may be used to control both the charging and the discharging rate of current through a high voltage battery.

REFERENCES:
patent: 3041501 (1962-06-01), Willits
patent: 3496450 (1970-02-01), Thiele
patent: 3549983 (1970-12-01), Sprogis
patent: 3600599 (1971-08-01), Wright et al.
patent: 3955132 (1976-05-01), Greenwood
patent: 4124886 (1978-11-01), Black et al.

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