中国电子技术网

设为首页 网站地图 加入收藏

 
 

[原创] ST VIPER222 700V高压转换器解决方案

关键词:电源管理 DC/DC转换器 AC/DC转换器 VIPER222

时间:2020-04-23 11:16:15       来源:中电网

ST公司的VIPER222是高性能700V高压转换器,包含了730V功率MOSFET和PWM控制器.器件嵌入了高压起动和电流检测电路,从而在BOM中消除了额外的元件.频率抖动扩展了EMI,允许使用较小的滤波器.而突发模式技术允许在轻负载时有非常低的输入功耗.器件集成了1.2V基准电压,230 VAC时无负载输入功率40W,短路保护和热关断功能.主要用在家用电器,消费类电子,工业和照明的辅助开关电源(SMPS).中电网为您整理如下详细资料,本文介绍了VIPER222主要特性,框图和多种应用电路,以及评估板STEVAL-VP22201B 主要特性,电路图和材料清单.

The VIPER222 device is a high performance high voltage converter that combines a 730 V rugged power MOSFET with a PWM control. The device embeds the high voltage startup and the current sense circuit, avoiding the use of extra components in the BoM. frequency jittering spreads the EMI and allows the use of a small filter. The burst mode technique allows to obtain a very low input power consumption at light load.

VIPER222 is a 730 V high voltage converter optimized for flyback and buck topologies that operates at 60 kHz (L type) or 30 kHz (X type) switching frequency and integrates the jittering feature in order to reduce the EMI level.

The low IC consumption combined with the burst mode technique allow to obtain very low input power at no load and very good efficiency at light load.

VIPER222主要特性:

730 ..

查看全文

  • 分享到:

 

猜你喜欢