Electricity: power supply or regulation systems – Remote sensing
Patent
1978-10-27
1980-08-19
Miller, J. D.
Electricity: power supply or regulation systems
Remote sensing
361 18, G05F 158
Patent
active
042186471
ABSTRACT:
Voltage regulator having current limiting circuitry. The voltage regulator includes an operational amplifier which has a substantially high output impedance and is disposed in a negative feedback configuration to provide an output signal which is the difference between a reference voltage input and the magnitude of the output voltage of the voltage regulator. Overcurrent detection circuitry is connected to the output of the operational amplifier and provides an on or off signal whenever the magnitude of the current drawn by a load exceeds a predetermined magnitude. When the magnitude of the load current exceeds a predetermined magnitude, the output of the overcurrent detection circuitry will be a low level signal which clamps or draws down the magnitude of the output voltage of the operational amplifier towards ground potential. A resistor-capacitor series circuit connected between ground and the output of the operational amplifier integrates the digital signal and provides an analog signal proportional to the average magnitude of the output voltage of the operational amplifier. A portion of the magnitude of the analog signal is fed back through a resistor to the gain of the operational amplifier and cause the output voltage of the operational amplifier to be linearly reduced which, in turn, through the power amplification controlling circuitry of the voltage regulator linearly reduces the output current of the voltage regulator until the overcurrent condition is eliminated.
REFERENCES:
patent: 3768012 (1973-10-01), Wilkinson
patent: 3930194 (1975-12-01), Walker
patent: 3978393 (1976-08-01), Wisner et al.
patent: 3984755 (1976-10-01), Lehnhoff et al.
patent: 4021701 (1977-05-01), Davies
patent: 4128866 (1978-12-01), Doerre
Regulating PWM Technical Specification, Silicon General Inc., Model No. SG1524.
Burroughs Corporation
Fissell, Jr. Carl
Hanlon, Jr. William M.
Miller J. D.
Warner Delbert P.
LandOfFree
Voltage regulator with current limiting circuitry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage regulator with current limiting circuitry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage regulator with current limiting circuitry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1429283