The price is ABJ1-14WFX

The price is ABJ1-14WFX DC high voltage is applied to the primary side P-side high-frequency pulse transformers, switching regulator series with the primary side of the pulse transformer after another, and then received a DC high voltage N-terminus. Periodically switch is turned off, the primary DC voltage into a rectangular wave. A pulse transformer coupled to the secondary, and then by the rectifier filter to obtain the corresponding DC output voltage. Compare it to the output voltage sampling, to control the pulse width modulation circuit for changing the pulse width of the way, the output voltage stability. 4) When the SRU communication circuit when the inverter programmable (PLC) or PC computers, man-machine interface control, must transmit signals to each other via the communication interface. Figure 2.6 is LG inverter communication interface circuit. Frequency communication, it is usually a two-wire RS485 interface. Siemens inverter is the same. Two lines are used to transmit and receive signals. Pass before the drive signal after receiving a signal, these two signals have been integrated buffer A1701,75176B etc., in order to ensure good communication results. Therefore, the communication interface circuit inverter main board mainly refers to this part of the circuit, as well as signal interference circuit.