VIPER50SP

The Viper50SP is a switcher module designed for standby power for consumer and computer applications, employing a quasi-resonant topology supporting an average efficiency of 85 percent. This offline switcher module is a high performance, low component count AC-DC converter that provides a stable voltage regulated output. It utilizes an asynchronous rectifier on the secondary side, which results in a high power factor at light load.

The Viper50SP features a single stage primary side offline topology with quasi-resonant operation. This improved topology efficiently reduces the size of the input filter components, thus eliminating the need for extra insulation and creepage distance. Its integrated metal-oxide-semiconductor field-effect transistor (MOSFET) also ensures a high level of energy efficiency and fast dynamic response. In addition, the module supports an output overload protection circuit, which can provide short circuit protection and inrush current control.

The Viper50SP is built with a conventional flyback topology, which eliminates the need for an additional (isolated) output diode and increases the efficiency of the device. Its proprietary design reduces the number of components, allowing the module to operate in a just 180 kHz frequency range with low switching losses and improved energy-saving efficiency. This alsoreduces the operating temperature and extends the life of the device.

The device has a wide range of applications and is designed for power supplies in industrial applications, consumer goods, lighting, and home appliances. This module provides Universal Input (90-277 VAC) with constant voltage with a maximum power of 50 W. In addition, its protection features enable it to operate under harsh conditions, such as overvoltage, EMI, and thermal shutdown.

The working principle of the Viper50SP is fairly simple: It utilizes an asynchronous rectifier to convert the AC input power to DC. The unit\'s switching power supply then rectifies the voltage, filters it, and converts it to the desired output voltage. The rectified voltage also passes through a bias winding which helps improve efficiency. The switching power supply then feeds the regulated output voltage to the load. The Viper50SP also features a self-protection function, which will shut down the power supply when a short circuit or overload is detected.

Overall, the Viper50SP is a highly efficient offline switcher power module with a wide range of applications. It is built with a single stage primary side offline topology with quasi-resonant operation, allowing it to operate in a wide range of frequencies with low switching losses. In addition, its proprietary design reduces the number of components, making it ideal for applications that require high efficiency and fast dynamic response. Finally, its protection features enable it to operate under harsh conditions, such as overvoltage, EMI, and thermal shutdown.