Overload protection circuit for output driver

Patent · Tue May 11 04:00:00 EDT 1982

OSTI ID:864207

Stewart, Roger G ^[1]

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1. Neshanic Station, NJ

A protection circuit for preventing excessive power dissipation in an output transistor whose conduction path is connected between a power terminal and an output terminal. The protection circuit includes means for sensing the application of a turn on signal to the output transistor and the voltage at the output terminal. When the turn on signal is maintained for a period of time greater than a given period without the voltage at the output terminal reaching a predetermined value, the protection circuit decreases the turn on signal to, and the current conduction through, the output transistor.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY
• Assignee: RCA Corporation (New York, NY)
• Patent Number(s): US 4329600
• Application Number: 06/084,711
• OSTI ID: 864207
• Country of Publication: United States
• Language: English

Related Subjects

/361/327/
application
circuit
conduction
conduction path
connected
current
current conduction
decreases
dissipation
driver
excessive
excessive power
maintained
means
output
output terminal
overload
path
period
power
power dissipation
power terminal
predetermined
predetermined value
preventing
preventing excessive
protection
protection circuit
reaching
sensing
signal
terminal
time
transistor
value
voltage