VE-20H-IY

VE-20H-IY Application Field and Working Principle

The VE-20H-IY is a dual-channel, high-efficiency, DC-DC converter that offers an interleaved pulse-width modulation (PWM) feature. The VE-20H-IY operates at high speed and, unlike single-channel PWM converters, the interleaved PWM feature allows for a flexibility of operation. This makes the VE-20H-IY suitable for a number of applications, such as server nodes, storage devices, base stations, and other distributed power systems.

The VE-20H-IY employs a combined AC/DC single-loop control system, with an active current-mode (ACM) control embedded in the AC-side controller. This eliminates the need for an external gate resistor, saving board space, and reduces the number of components needed to achieve accurate current-mode control. Moreover, the VE-20H-IY uses a constant on-time (COT) control architecture, which allows for low-noise operation and high efficiency. With low switching losses, the VE-20H-IY can achieve more than 96% efficiency while providing excellent output voltage regulation and transient response.

The VE-20H-IY also provides integrated intelligence for over-voltage (OVP), under-voltage (UVP), and over-load (OLP) protection. This eliminates the need for an external protection circuit and improves system reliability. Additionally, the VE-20H-IY includes output protection features such as output short-circuit protection (SC) and output temperature-dependent frequency foldback (TDFB), which can be used to improve system stability.

The VE-20H-IY is a highly efficient, cost-effective, and reliable AC/DC power converter. It offers low-noise performance with consistent output voltage regulation, high efficiency, and protection against over-voltage, under-voltage, and over-load conditions. The VE-20H-IY is the perfect power component for a variety of applications, including servers, storage devices, base stations, and other distributed power systems.