VIPER100-22-E

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The VIPER100-22-E is a power management integrated circuit (PMIC) specifically designed to control the power supply of many electrical and electronic devices. It is classified as part of PMIC – AC DC Converters, Offline Switchers family of devices, and it can be used in a variety of applications. This article will discuss the application field and working principle of the VIPER100-22-E.

Applications

The VIPER100-22-E is designed to control power in a variety of applications. It is commonly used in industrial, medical, and automotive systems where high efficiency and low cost power conversion is required. It can also be used in residential and commercial settings for a variety of functions, including saving energy, increasing reliability and providing power backup. Additionally, the VIPER100-22-E can be used in applications where precise control of power output is required, such as in adjustable power supplies.

Working Principle

The VIPER100-22-E uses a ‘fly-back’ topology to manage power output. This topology is a type of non-isolated switching mode power supply, where the primary and secondary windings of the transformer are directly connected. The VIPER100-22-E is composed of a power MOSFET, an opto-coupler, two voltage regulators, two current sense resistors, and a controller. When the power MOSFET is switched on, the voltage rises at a controlled rate, inducing a current in the primary winding of the transformer and ramping up the voltage at the input of the controller. This triggers a pulse in the opto-coupler, and the controller then switches off the MOSFET. At the same time, the current sense resistors measure the current, allowing the controller to adjust the duty cycle of the pulse train, and thus controlling the output voltage of the transformer. This process is then repeated, with the primary current ramping up and then being switched off to maintain the desired voltage at the output.

Conclusion

The VIPER100-22-E is a versatile power management integrated circuit which can be used in a variety of applications where precise control of power output is required. It uses a ‘fly-back’ topology, which consists of a power MOSFET, an opto-coupler, two voltage regulators, two current sense resistors and a controller, to control the power output of the transformer. Using this topology, the VIPER100-22-E is capable of providing high efficiency and reliable power conversion in a variety of settings.

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