PT78HT233H

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DC DC Converter

DC-DC converters are electronic circuits that convert input power from one voltage or current level to another. PT78HT233H is one of the DC-DC converters used to convert higher voltages to lower ones. This type of converter is used in many applications such as consumer electronics, to supply power to circuits, and charge Li-ion batteries.

Application field of PT78HT233H

PT78HT233H is primarily used for 3.3V and 5V power supply, can be used to boost from 1.5V to 5V, and is integrated with Low voltage start-up, to maintain the good stability of low voltage output. The output voltage range is can be adjusted between 1.6V and 6.3V, and the special feature is its ultra-low-noise that makes it the ideal choice for low-noise system application and high efficiency is maintained by keeping low-power resistors.PT78HT233H are used to stabilizes and generates a constant voltage/current output, or to “step up” the voltage/current or “step down.” This type of DC-DC converter has a wide variety of applications in digital processing system, consumer electronics, aerospace, telecom, automotive electronics, computer systems, automotive control system, military equipment and many more.

Working Principle of PT78HT233H

Firstly, the input voltage is applied to the DC-DC converter where it is regulated to a certain value to minimize the input voltage fluctuation. Then it is multiplied to get higher voltage using internal circuit, and then supply to the transformer via switch. The output voltage is then derived from the secondary side of the transformer through rectification and filtering.

PT78HT233H surface mount power modules are highly recommended for all kinds of voltage/power conversion. It makes use of a synchronous rectifier, which consists of an inductor, a diode, a load, a charge pump circuit, and a control circuit, in order to provide a stabilized DC output voltage. The control circuit will control the power switch by regulating the current passing through the inductor. As the current passes through the diode, a portion of it will be stored in the capacitor, which will act as a voltage regulator in order to limit the maximum output voltage. Furthermore, the load resistors will disperse the extra energy of the output voltage. With all these elements, a steady, regulated DC output is generated that is perfect for any kind of application.

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