Short-circuit protection circuit

Details Short-circuit protection circuit Short-circuit protection circuit

1996-08-26

1998-03-31

Berhane, Adolf

Electricity: power supply or regulation systems

Self-regulating

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

361 18, G05F 316, H02H 720

Patent

active

057342601

ABSTRACT:
A short-circuit protection circuit senses the output current of an output transistor to provide a control signal to a control transistor. The control transistor, in response to the control signal, varies an input voltage to an internal stage of an amplifier driving the output transistor, so as to cause the output transistor is switched off. A hysteresis resistor is coupled in series with an input terminal of the short circuit protection circuit, so as to prevent transient noise from switching off said output transistor.

REFERENCES:
patent: 4567537 (1986-01-01), Kalkhof et al.
patent: 5272432 (1993-12-01), Nguyen et al.
patent: 5339019 (1994-08-01), Benz

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