1
Hugh Duffy, Justin Chiang, John Midgley, Brian Thomas: Circuit protection arrangements using ground fault interrupter for overcurrent and overvoltage protection. Raychem Corporation, Herbert G Burkard, April 28, 1998: US05745322 (27 worldwide citation)

An electrical protection system which uses a ground fault interrupter (GFI) to protect a circuit from (A) ground faults and (B) overcurrents and/or overvoltages. For overcurrent protection, a control element may be coupled in series with the line or return input to the GFI, and a bypass element may ...


2
Arthur J Edwards: Circuit for overvoltage protection. Motorola, Phillip H Melamed, July 14, 1992: US05130883 (23 worldwide citation)

In a circuit for overvoltage protection of a low voltage device (11) arranged to control a load (12) an energy storage capacitor (17) is connected to charge from supply (+V) while the device is controlled from a control circuit (100). During overvoltage, the controller is disconnected by switch mean ...


3
Gilbert S Lee: Method and circuit for detecting short circuit in an asynchronous DC-DC boost converter. Alpha & Omega Semiconductor, Chein Hwa Tsao, CHEmily, April 8, 2014: US08692477 (10 worldwide citation)

A simple, cost-effective and efficient short circuit protection with simple routing of the ground on the PCB is achieved in an asynchronous DC-DC boost converter wherein a voltage sensing controller selectively isolates an input power supply to a load in the event of a short circuit. The controller ...


4
Forte Luciano: Overvoltage protective circuit for constant voltage-current crossover network. Raytheon Company, August 3, 1971: US3597655 (7 worldwide citation)

A crowbar circuit for overvoltage protection of loads in which the setting of the overvoltage crowbar trip point is made without activating the crowbar circuit. Normally, the setting is made by adjusting the power supply to the voltage trip level desired and then setting the crowbar sense network un ...


5
Hideki Kiuchi: Bus driver including control circuit for overvoltage protection. NEC Electronics Corporation, McGinn IP Law Group PLLC, February 23, 2010: US07667939 (4 worldwide citation)

A bus driver device is provided with a bus driver circuit connected to a bus line and a overvoltage protection section connected between the bus line and a power supply line. The overvoltage protection section has an overvoltage protection function for the bus line. Further, the bus driver device is ...


6
Edwards Arthur J: Circuit for overvoltage protection.. Motorola, September 4, 1991: EP0444484-A2 (4 worldwide citation)

In a circuit (switch means 10) for overvoltage protection of a low voltage device (11) arranged to control a load (12) an energy storage capacitor (17) is connected to charge from supply (+V) whilst the device is controlled from a control circuit (100). During overvoltage, the controller (100) is di ...


7
Bremond Andre: In-series protection circuit.. Sgs Thomson Microelectronics, June 16, 1993: EP0546963-A1 (1 worldwide citation)

The present invention relates to a circuit for overvoltage protection of a component (L) having a resistor of value R connected to a supply line of given polarity, comprising a detector of overvoltage at the terminals of the line (1), a first normally-closed switch (S1) in series on a conductor of t ...


8
Kyouichi Kashima, Yoshitaka Fukushima, Masahiro Ono, Tetsuro Hirano: Semiconductor integrated circuit. SEMICONDUCTOR COMPONENTS, September 15, 2015: US09136717

A circuit device connected between a neighboring pair of terminals in a semiconductor integrated circuit is protected from electrostatic damage due to a surge voltage when the surge voltage is applied between the neighboring pair of terminals. The semiconductor integrated circuit is formed to includ ...


9
Trevor M Newlin: Power converter with clamping circuit for overvoltage protection. SILANNA ASIA, The Mueller Law Office P C, October 30, 2018: US10116218

Power converters and their methods of operation are described. An example method involves regulating an output using a switching circuit that responds to a control signal. The method involves comparing a feedback voltage from the output to a reference voltage using an error amplifier to create an er ...


10
Edward John Coyne: Overvoltage protection device, and a galvanic isolator in combination with an overvoltage protection device. ANALOG DEVICES GLOBAL, Knobbe Martens Olson & Bear, July 4, 2017: US09698594

Components can be damaged if they are exposed to excess voltages. A device is disclosed herein which can be placed in series with a component and a node that may be exposed to high voltages. If the voltage becomes too high, the device can autonomously switch into a relatively high impedance state, t ...