如何降低待机能耗ON Semiconductor

简介：

问：我看了推荐的方案，在AC输入端有有并接一个1M的电阻，不知道对输入端的高压试验或雷击有什么样的影响？
答： Instantanously, the 1MEG resistor will help to leak away some current during surge test.  However, it will increase standby power.

问：高电压待机激活，是否对电路寿命是否有很大影响！
答： No, our IC can stand high voltage.

问：針對DVD可以提供何種芯片做到0.4W。我們的輸出功率260瓦？
答： NCP1200 fits for DVD players (20-30W) and achieved 0.4W.

Your application is not simply DVD player.  It should be DVD+AMP.  We have solutions with NCP1203 (140W) and other devices.  Let me know your details by email t

问：1。NCP系列能做到70W以上的开关电源吗？
2、有没有比较典型的应用，电路参数如何计算？
都是入门的问题。但我们现在需要了解！谢谢
答： 1. We have various devices to provide solution for different level of power output levels, please visit our websit for more informations.

2. Its a long question, may need few days to cover, I suggest you can visit our website and download some app

问：目前IC芯片的功耗在逐步降低,供电电压已降至1.5V,而传统5V供电芯片也在大量使用,这样在进行系统设计时,电源设计就是一个很大的问题,一个系统中,不同的芯片需要不同的工作电压,由此造成系统设计复杂化,各芯片接口部分产生诸多不确定错误,比如3V在5V芯片中会误认为低电平,如果加转换器件,又增加成本,请问如何解决系统设计中的此类问题?
答： In fact, our IC"s can handle multiple outputs. For example, one of our DVD player power supply board has 6 outputs.  Each of them can be regulated.  It also contains low voltages and high voltages together.  The most impo

问：On Sami 是否有较新颖的适用于测试仪表方面的节能方案？
After all say thank you to Manson_Chan & say hello to everybody!
答： Can you provide more specific requirements on the end applications you are talking about.

问：對DVD電源待機功率最小可以做到多少?
答： It can achieve 0.4W.

问：能否将供电分组,只是提供给控制芯片电压,将其他的回路休眠?
答： There are various ways to implement.  We have such circuit to supply MCU only in TV at standby. Please check our MC44608 datasheet.

问：想请教在使用电池供电的便携式产品中,如何做到较低的待机功耗?
答： Please consider NCP14xx series from ON, e.g., NCP1400, 1402, 1410, 1411, 1450 and more.

问：变压器的质量如漏磁，对待机功耗有何影响？
答： Yes, they are the key issue for both of standby and normal power efficiency.

Decrease leackage inductance as possible as you can, and that could also increase the system reliability