VI-JW1-EY-S

VI-JW1-EY-S application field and working principle

Introduction

VI-JW1-EY-S is a DC to DC converters with guaranteed low noise and high efficiency. It features high frequency quasi-resonant soft-switching topologies, with 500VAC isolation, snubber-less and dead times for enhanced efficiency, and special thermal management techniques.

Application Fields

VI-JW1-EY-S converters are often used in a wide variety of applications. Typical examples include medical instrumentation, military, aerospace, power supplies, and communications equipment. In particular, it is an ideal choice for communication systems which requires high efficiency and noise-free power supply.

Working Principle

The VI-JW1-EY-S works by converting a high-voltage DC input to a low-voltage DC output. The core of the converter is the transformer. The transformer implements an isolated output voltage from the isolated input voltage. It does this by exploiting the differences in the two input properties. A voltage transformer is applied in the front stage of the converter. At the same time, a high frequency switching power supply is used in the back stage of the converter.

In the front stage, the transformer is used to boost the input voltage into a higher voltage level. It does this by means of a series of magnetic fluxes generated by a coil connected to the input voltage and the voltage output. After the input voltage is boosted up to the desired value, it is then transformed into a lower voltage at the switching power supply stage. The switching power supply stage consists of two key components: a power transistor and an inductor.

In the power transistor stage, the input voltage is rectified and then the transistor is used to alternate the input voltage rapidly. As the input voltage is switched rapidly, it is also converted into a higher frequency alternating voltage. This is known as pulse-width modulation or PWM. The PWM process ensures that the output signal is precise and efficient. The transformer then converts the PWM signal to AC which is then rectified into a DC output.

Conclusion

VI-JW1-EY-S is a high efficiency and noise-free DC to DC converter. It features high frequency quasi-resonant soft-switching topologies, with 500VAC isolation, snubber-less and dead times for enhanced efficiency. This makes it ideal for applications requiring power supply at high efficiency and noise-free condition. It is often used in medical instrumentation, military, aerospace, power supplies, and communications equipment.