[특허]Solid state power controllers including current sensing circuitry is configured to bias a general signal to a predetermined level in order to substantially eliminate the offset error in an amplifier and an A/D converter

Solid state power controllers including current sensing circuitry is configured to bias a general signal to a predetermined level in order to substantially eliminate the offset error in an amplifier and an A/D converter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-001/00 H02H-007/00 H02H-009/02
출원번호	US-0703628 (2010-02-10)
등록번호	US-8190934 (2012-05-29)
발명자 / 주소	Tofigh, Farshid Kruppa, Otmar Khan, Imtiaz Ghahramani, Iraj Lawton, David Policky, Kent
출원인 / 주소	Leach International Corporation
대리인 / 주소	Christie, Parker & Hale, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 47

초록 ▼

Solid state power controllers in various configurations are provided. One such solid state power controller includes a power connector, a load connector and at least one communication connector, a solid state switch electrically connectable between the power connector and the load connector, where the switch includes an input, a microcontroller coupled to the input of the solid state switch, and current sensing circuitry coupled to the microcontroller and configured to sense a current flowing through the solid state switch, the current sensing circuitry including an amplifier having an offset error, where the current sensing circuitry is configured to generate a signal indicative of the current flowing through the solid state switch, and bias the generated signal to a predetermined level to substantially eliminate the offset error in the amplifier.

대표청구항 ▼

1. A solid state power controller possessing a power connector, a load connector and at least one communication connector, comprising: a solid state switch electrically connectable between the power connector and the load connector, where the switch includes an input;a microcontroller coupled to the input of the solid state switch; andcurrent sensing circuitry coupled to the microcontroller and configured to sense a current flowing through the solid state switch, the current sensing circuitry comprising an amplifier having an offset error;wherein the current sensing circuitry is configured to: generate a signal indicative of the current flowing through the solid state switch; andbias the generated signal to a predetermined level to substantially eliminate the offset error in the amplifier;wherein the microcontroller comprises an analog to digital converter having an offset error;wherein the current sensing circuitry is configured to bias the generated signal to a predetermined level in order to substantially eliminate the offset error in the amplifier and the offset error in the analog to digital converter;wherein the analog to digital converter is configured to convert the generated signal into a digital signal; andwherein the microcontroller is configured to compensate for the bias by subtracting the predetermined level from a magnitude of the digital signal. 2. The solid state power controller of claim 1, wherein the solid state switch comprises a MOSFET. 3. The solid state power controller of claim 1, further comprising voltage sensing circuitry connected to the microcontroller and configured to sense the voltage of at least one terminal of the solid state switch. 4. The solid state power controller of claim 1, further comprising: an arc fault microcontroller coupled to the microcontroller coupled to the input of the solid state switch and configured to detect an arc fault in circuitry connected to the power connector or the load connector of the solid state power controller;wherein the arc fault microcontroller is configured to respond to the sensing of an arc fault by generating a signal to open the solid state switch. 5. The solid state power controller of claim 1, wherein the microcontroller is configured to detect an overcurrent condition. 6. The solid state power controller of claim 1, wherein the microcontroller is configured to generate an input to the solid state switch in accordance with at least one predetermined operational characteristic. 7. The solid state power controller of claim 6, wherein one of the predetermined operational characteristics is a rated current. 8. The solid state power controller of claim 6, wherein one of the predetermined operational characteristics is a trip current threshold.

이 특허에 인용된 특허 (47)

Ionescu Adrian F. (15 Swan River St. Patchogue NY 11772), A.C. power controller with short circuit and overload protection.
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Baker Donal E. (American Township ; Lima County OH) Shuey Kenneth C. (Cridersville OH), Alternating current power controller with DC transistor switching and an internal DC power supply.
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Kozisek James R. ; Ciccone Thomas W., Amplifier offset cancellation using current copier.
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Macbeth, Bruce F., Arc fault circuit detector having two arc fault detection levels.
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Chen, Sean S., Circuit and method to counter offset voltage induced by load changes.
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Mares,Mircea; Liu,Zhenning, Electric load management center.
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Bowles Edward E. (San Diego CA), High-voltage solid-state switching devices.
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Billings William W. (Lima OH), Hybrid electrical power controller.
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Grady Thomas G. ; Stuart Tom L. ; Clase Scott M. ; Beard Bradley D., Method of shaping powder metal parts.
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Darty Mark Anthony ; Prickett Guy Brent ; Schwarz Charles Raymond, Modular solid state power controller with microcontroller.
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McFall William A. (Fullerton CA) White Stanley A. (Santa Ana CA) Lane Howard K. (Laguna Niguel CA) Butcher Daryl T. (La Habra CA) Anderson ; Jr. Donald V. (Riverside CA) McCollum Patrick E. (Santa An, Monolithic solid state power controller.
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Tofigh Farshid (Misson Viejo CA) Brar Parminder S. (Huntington Beach CA) Tsao Yen-Kuei (Hacienda Heights CA) Clements Evan (Dana Point CA) Maier Joseph (Wechingen DEX), Multichannel power distribution system.
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Mitchell James T. (Lima OH), Packaged solid state power controller with separable mounting for a power switching device, and method of assembly.
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Salim Abbas A. ; Jud James W. ; Mulvey James F., Power actuation and switching module.
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Parkinson Gerald W. (Shelton CT), Power controller reset during load starting.
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Beneditz, Bruce D.; Stoneback, Russell G.; Bouton, Marc A.; Spear, Kenneth; Dickey, John A., Power distribution assembly with redundant architecture.
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Crill Rikk, Power-loss interlocking interface method and apparatus.
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Potenzone Richard A. (20675 SW. 162 Ave. Miami FL 33187), Voltage monitor.
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연합인증

Solid state power controllers including current sensing circuitry is configured to bias a general signal to a predetermined level in order to substantially eliminate the offset error in an amplifier and an A/D converter 원문보기

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연합인증

Solid state power controllers including current sensing circuitry is configured to bias a general signal to a predetermined level in order to substantially eliminate the offset error in an amplifier and an A/D converter 원문보기

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