Which one does not belong to the advantages of power electronic devices?
A: When the device turns off, it can withstand high terminal voltage and the leakage current is approximately zero
B: When the device turns on, it can carry a large current, and the terminal voltage is approximately zero
C: The device can work in amplified state
D: The current can only flow through in one direction
A: When the device turns off, it can withstand high terminal voltage and the leakage current is approximately zero
B: When the device turns on, it can carry a large current, and the terminal voltage is approximately zero
C: The device can work in amplified state
D: The current can only flow through in one direction
举一反三
- Two electronic devices are connected in series. When the load device wants to get the maximum ( ), the impedance of that is the same as the output impedance of the source (front-stage) device. A: Current B: Voltage C: Resistance D: Electric power
- The function of direct current regulated power supply is to input an alternating current power of 220volts, so that it can output __________.( ) A: alternating current 200 volts voltage B: direct current 24 volts voltage C: direct current 200 volts voltage D: alternating current 24 volts voltage
- 电子系统中的高电压可能致命。 A: High voltage in the electronic system can kill you. B: High voltage in the electronic system can be deadly. C: High voltage in the electronic system can be fatal. D: High voltage in the electronic system can be lethal.
- It can be measured by HF9600E Multi-Function Power Meter（ ） A: Current RMS B: voltage RMS C: instantaneous power D: active power
- Materials ____ which current can flow are called conductors.