adjustable current source high-power, low distortion, high stability AC power sources Adjustable Current Source1. AC-DC-AC frequency conversion technology2. Digital wave ... bits MCU, which has high automation4. High speed 12 bits A/D sampling technology,exactly display Voltage5. Current, Power, Power factor, ... voltage range:AC 0-300V12. CHP-500 Output biggest current:0-150V is 4.2A,0-300V is 2.1A13 ...