V150A5E300B

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Power electronics emphasize on the control of electrical energy, which allows numerous applications in modern society. In particular, DC DC converters regulate power for various kinds of usages, ranging from electric drives, inverters, or communication systems. V150A5E300B is a representative product, which is used in military and industrial applications.

Application Field: By definition, V150A5E300B is an isolated DC-DC converter that provides galvanic isolation between its input and output circuits. It is normally used in harsh environments, as this converter is designed with an excessive ten-fold surge current capability for up to 16 seconds, suitable for driving loads with substantial surge currents. It is widely adopted in military applications, such as military aircraft, tanks, or ships, as its modern design helps reduce electromagnetic interference.

In practice, V150A5E300B converter can also be used for industrial applications. It is able to tolerate extended operating temperature range of -40C to +90C and to withstand 2KVDC input/output isolation voltage, making it suitable for motion control motor applications, frequency inverters, or solar-power systems.

Working Principle: The fundamental part of V150A5E300B is the transformer, which provides the power-transforming capability as well as isolation between its two circuits. The primary section of the transformer is connected to the input of V150A5E300B, and the secondary section is connected to the output. To regulate the output voltage, the primary side of the transformer can be current controlled.

On the secondary side, the output voltage can be regulated by the Schottky diode D1, the inductor L, and the output capacitor C. The Schottky diode D1 is used to switch the inductor L with a duty ratio. The output voltage is then determined by the duty ratio and the value of the output capacitor C.

The switching of the circuit is realized with the PWM switch S, which is then modulated by the output of the signal amplifier U4, based on the output voltage. The output of the signal amplifier U4 is determined by the reference voltage and a bias voltage, which are generated by U1-U3. In conclusion, the output voltage is achieved by regulating these two voltages.

In short, the V150A5E300B can be applied in military and industrial applications, accomplishing its power regulation by means of a transformer, Schottky diode, inductor, output capacitor, and a PWM switch.

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