R7731AGE Integrated Circuits (ICs)

R7731AGE application field and working principle R7731AGE is an AC-DC converter from Ricoh Electronics, Inc. It can convert a wide range of AC market-level voltages to a stable DC voltage for further use in a range of applications. This R7731AGE can be used as an off-line switching regulator for low-power equipment, offline sensitive electronic systems, and other similar applications.The R7731AGE uses an advanced, cost-effective, and efficient switching regulator design to generate a stable voltage from the AC mains. This provides an ideal solution for applications requiring an isolated power supply, including those that use digital, linear, or discrete components. The R7731AGE is designed to provide reliable power supply even in noise-sensitive situations and can tolerate surges up to 1kV.The major components of the R7731AGE are its input rectifier, feedback circuits, and output topology. The input rectifier converts the AC voltage from the mains to a DC voltage for further processing. The feedback circuits measure the output voltage and adjust the duty cycle of the internal switching regulator to maintain a steady output voltage. The output topology of the R7731AGE is an active rectifier circuit, which includes a Schottky diode and an active switch. The active switch is used to synchronize the output voltage of the R7731AGE with the rectified output of the mains by acting as a bridge between them.The rectified DC voltage is then fed to the input of the switching regulator, which drives the active switch to control the output voltage of the R7731AGE. The R7731AGE can operate in several different operating modes, including continuous current mode and continuous voltage mode. In continuous current mode, the output voltage is regulated to a certain maximum, while in continuous voltage mode, the output voltage is regulated to a certain minimum.In addition to these features, the R7731AGE also features a low-ripple output, a wide input range, and a high degree of efficiency. Its low-ripple output provides a clean and stable voltage for the driven device case, while its wide input range can be used for applications located in areas with fluctuating supply. Lastly, its high efficiency helps to reduce the power consumption of the driven device and conserve power.Overall, the R7731AGE is a reliable, efficient, and versatile AC-DC converter that can be used for a variety of applications. Its wide input range and stability make it ideal for use in noise-sensitive situations, while its low-ripple output and high efficiency help to reduce power consumption and conserve energy.

R7731AGE

Richtek USA ...

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