DG120M-G

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As the development trend of electronic products in the current market, more and more AC DC converters become popular so that they are widely used in the application field. And DG120M-G is one kind of popular product among AC DC converters. In this article, the application field and working principle of DG120M-G are introduced in detail.

1. Application Field

DG120M-G is a high efficiency single output isolated ac/dc converter. It provides a perfect solution which combines the high density, reliability and flexibility of a PoE power solution with the high performance of a high frequency PFC converter. Thanks to its high power efficiency, the DLN-G series converter can output 12V, 15V, 24V with full load efficiency larger than 91% and no-load power less than 0.15W.

The range of applied places is very wide. Besides using as a slot machine power supply, this products can also be used at intelligent terminals, such as communication industry, instrumentation industry, household lighting industry, and medical equipment industry. It can meet the needs of a wide range of applications,which makes it loved by many manufacturers.

2. Working Principle

The working process of DG120M-G can be divided into three parts: AC rectification, DC conversion and output control. The AC circuit first works under the control of the mains frequency generator, and converts the mains voltage to a low-frequency, low-voltage AC rectified signal. The DC conversion part is composed of a pulse width modulation (PWM) controller, a switching power device and other passive components, the rectified AC signal is filtered by the EMI filter before the PWM controller works to drive a power switch that provides the required voltage and current of the corresponding power oscillator.

The output part is controlled by the output control part. The output voltage of the power device is filtered by the LC filter to provide a relatively smooth output voltage. Finally, the output voltage is adjusted according to the needs of users to complete the output.

3. Conclusions

DG120M-G in the application field are very extensive, it is mainly used in more intelligent electronic products, its working principle is also reasonable. It has obvious advantages in energy saving and environmental protection in the comparison with other similar products. Therefore, DG120M-G is a good choice of AC DC converters.

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