Invention Application
- Patent Title: OVERVOLTAGE CLAMP WITH PARALLEL CONTROLLED RESTIVE PATH
- Patent Title (中): 具有并联受控通路的过电压保护器
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Application No.: PCT/NO2017/050125Application Date: 2017-05-23
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Publication No.: WO2017209620A1Publication Date: 2017-12-07
- Inventor: SONNE, Darrell S.
- Applicant: QINTERRA TECHNOLOGIES AS
- Applicant Address: Moseidveien 35 4033 STAVANGER NO
- Assignee: QINTERRA TECHNOLOGIES AS
- Current Assignee: QINTERRA TECHNOLOGIES AS
- Current Assignee Address: Moseidveien 35 4033 STAVANGER NO
- Agency: HÅMSØ PATENTBYRÅ ANS
- Priority: NO20160924 20160531
- Main IPC: H02H9/04
- IPC: H02H9/04
Abstract:
The invention relates to an overvoltage protection circuit (106, 300, 501, 604, 703, 800) comprising: i) a first terminal (V+) and a second terminal (V-) for receiving a supply voltage (VL) at a load (103); ii) a voltage clamping circuit (801) connected between said terminals (V+, V-) and providing a clamping current path (CCP) between said terminals (V+, V-) as soon as the supply voltage (VL) over said terminals (V+, V-) reaches a preset clamping voltage (VCLP) such that said supply volt- age (VL) is substantially limited to said clamping voltage (VCLP). The overvoltage protection circuit (106, 300, 501, 604, 703, 800) further comprises a controllable resistance circuit (803) connected between said terminals (V+, V-) parallel to the voltage clamping circuit (801), wherein the controlla- ble resistance circuit (803) is configured for providing a resistive current path (RCP) parallel to the clamping current path (CCP) of the voltage clamping circuit (801) when the voltage clamping circuit (801) is activated such that it conducts an electrical current (Icl), and for providing a high- impedance parallel to the clamping current path (CCP) of the voltage clamping circuit (801) when voltage clamping circuit (801) is deactivated. The invention provides for a solution that exploits the benefits of two different solutions namely that of voltage clamping semiconductor elements and resistors.
Public/Granted literature
- WO2017209620A9 OVERVOLTAGE CLAMP WITH PARALLEL CONTROLLED RESISTIVE PATH Public/Granted day:2017-12-07
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