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Overvoltage and overcurrent protection

Overvoltage and overcurrent protection. voltage clamp circuits for low voltage applications - surge stopper for high voltage transient. Institute of Nuclear Physics, Krakow, Poland. Voltage clamps for protecting DC circuits. 1. The idea is taken from. for low voltage.

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Overvoltage and overcurrent protection

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  1. Overvoltage and overcurrent protection • voltage clamp circuits for low voltage applications • - surge stopper for high voltage transient Institute of Nuclear Physics, Krakow, Poland Piotr Kapusta,Bartlomiej Kisielewski

  2. Piotr Kapusta,Bartlomiej Kisielewski

  3. Voltage clamps for protecting DC circuits 1. The idea is taken from for low voltage. Piotr Kapusta,Bartlomiej Kisielewski

  4. Simulation with LTspice IV from Power Cables FE LT1970 Sensewires Vout monitoring P-channel MOSFET Voltage clamp N-channel MOSFET Vgs=3.63 V Iload=3.62 A Piotr Kapusta,Bartlomiej Kisielewski

  5. Voltage clamp circuits for protecting low-voltage DC Powe Supply – real tests POWER CABLE LT1970 Volatage Regulator SENSE WIRES LT1970 FE Electronics Regulator 15 m cable Clamp circuit was tested with 15m cable connected to power lines close to voltage regulator and to sensing voltage on the load. Piotr Kapusta,Bartlomiej Kisielewski

  6. Voltage clamp circuits for protecting low-voltage DC Powe Supply G1 D1 Vsense+ = Vout Vout < VGS(th) D2 G1 Vout > VGS(th) VGS(th) Gate Threshold Voltage = 3.3 V D1 D2 Piotr Kapusta,Bartlomiej Kisielewski

  7. 2. Solution for high voltage transient. Iload=0.66 A Vout=16 V Rload=24 Ohm Vienna 6-8 February 2012 Piotr Kapusta, Bartlomiej Kisielewski

  8. 3. Voltage Monitoring Piotr Kapusta,Bartlomiej Kisielewski

  9. Thank you ! Piotr Kapusta,Bartlomiej Kisielewski

  10. Piotr Kapusta,Bartlomiej Kisielewski

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