IS200VCRCH1BBC | GE | Switching power supply for relay protection

Description

IS200VCRCH1BBC | GE | Switching power supply for relay protection

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IS200VCRCH1BBC  we have:

We provide considerate service and complete parts

① Promptly reply you within 24 hours；

② 100% quality assurance, 1-year warranty；

③ Best services, reasonable price；

④ Have been in the line for many years, has a good reputation；

⑤ We will ship the items within 3 working days after the payment is reached；

⑥ All the goods will be tested before shipment；

⑦ Packing in professional anti-static bag；

Switching power supply IS200VCRCH1BBC  for relay protection is a type of power supply that operates in harsh environments. It must be able to operate normally within a wide temperature range of 2070. Compared with general system power supply, it has its own special requirements.

A single ended flyback type switching power supply for relay protection has been designed based on the structure of various switching power supplies and the characteristics of relay protection devices. Its working principle is that the 50Hz 220V IS200VCRCH1BBC  voltage input from the AC power grid is directly rectified and filtered through EMI anti electromagnetic interference filtering, and then transformed into a high-frequency square wave voltage of tens of kHz through a converter. The DC voltage is isolated and reduced by a high-frequency transformer, and then output through high-frequency rectification filtering. After sampling, comparison, amplification, and control of the driving circuit, the duty cycle of the power switch in the converter is controlled to obtain a stable output voltage.

In the design of switch mode IS200VCRCH1BBC  power supply for relay protection introduced in this article, the control circuit adopts UC3844. UC3844 is a high-performance fixed frequency current type controller with single output that can directly drive bipolar transistors and MOSFET field-effect transistors. The internal simplified schematic diagram of UC3844 is shown in Figure 3

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