Power device coer, Cotr parameter testing circuit and survey test panel

• Main Authors: CHEN ZHOUSHUAI, ZHU YONGHUI, XIE ZUOQUAN
• Format: Patent
• Language: Chinese; English
• Published: 26.10.2018
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model provides a power device coer, cotr parameter testing circuit and survey test panel, including power module, switch module and test module, the switch module includes voltage source V2, controllable switch device U1 and impedance adjustable electronic switch Q1, power module includes high -tension electricity potential source HV, and its positive pole links to each other with thefirst power of electronic switch Q1 end, and it is continuous with measured device Q2's control end and second power end that the negative pole passes through sampling resistor R7, test module includes that two voltage detecting of sampling resistor R7 and external oscilloprobe put vpr1 and vpr2, voltage detecting point vpr1 one end is connected with the first power of measured device Q2 end, andthe other end is connected between sampling resistor R7 and high -tension electricity potential source HV, and the voltage detecting point vpr2 connect at sampling resistor R7 both ends. The utility model discloses can calcula