中国电子技术网

设为首页 网站地图 加入收藏

 

[原创] ST VIPER26K 1050V高压转换器解决方案

关键词:电源管理 AC/DC转换器 VIPER26K

时间:2019-08-30 13:18:10       来源:中电网

ST公司的VIPER26K是集成了1050V雪崩功率部分和PWM电流模式控制论的高压转换器.1050V- BV功率MOSFET可扩展输入电压范围,同时降低DRAIN缓冲电路的尺寸.器件满足最严格的节能标准,因为它有非常低的功耗和轻负载时工作在突发模式.集成的HV起动,检测FET,误差放大器和抖动振荡器可使得完整的应用具有最少化元件数量.VIPer26K支持大多数开关电源(SMPS)拓扑如带光耦的隔离反激,初级调整,电阻反馈的非隔离反激,降压和降压升压等.漏极电流限额保护500mA, 230 VAC时的待机功耗小于30mW,抖动开关频率降低EMI滤波器成本: 60 kHz ± 4kHz.故障消除后安全自动重起.滞后热关断,内置了软起动以提高系统可靠性.主要用在能量表的SMPS,3相输入工业系统的辅助电源,LED照明和空调.本文介绍了VIPER26K主要特性,框图和基本应用电路图,多种应用电路以及参考设计STEVAL-VP26K01B主要特性,电路图和材料清单.

The device is a high voltage converter smartlyintegrating a 1050 V avalanche-rugged powersection, with a PWM current mode control. The1050 V-BV power MOSFET allows to extend inputvoltage range, and reduce the size of the DRAINsnubber circuit. This IC meets the most stringentenergy-saving standards as it has very lowconsumption and operates in burst mode underlight load.

The integrated HV startup, sense-FET, erroramplifier and oscillator with jitter allow a completeapplication to be designed with the minimumnumber of components.

The VIPer26K supports the most common SMPStopologies such as: isolated flyback withoptocoupler, primary-side regulation, non-isolatedflyback with resistive feedback, buck, and buckboost.

.txt_po{ color:#FFFFFF;text-align:center; cursor:pointer; border:1px solid #C41618; width:180px; height:35px; margin-top:20px; -moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px; } .txt_po a{ text-decoration:none; color:#C41618; display:inline-block; padding:8px 6px; font-size:20px; line-height:30px; } .txt_po img{ vertical-align:sub; } .txt_po a:hover{ color:#C41618;}

查看全文

  • 分享到:

 

猜你喜欢