如何降低待机能耗ON Semiconductor

简介：

问：先生您好：我一直从事油田井下电子压力计和流量计的设计工作，存储式井下仪器的功耗问题是我们关注的热点。我想请问在150度高温下单片机和其他器件的待机功耗应怎样考虑？能否提供这方面的采购信息？
答： I am afraid ON does not produce MCU.  For other IC"s, 150 deg. environment is too harsh.

问：开关频率对降低损耗有多大影响？除降低开关频率外，可有其它措施？
答： Refer to page 3.  You can see frequency plays a role.  There are still other means to reduce power, even the current flowing through opto coupler can affect standby power.

问：请问安森美有50~240V输入的产品吗？
答： It depends on system design.

问：你们的电源管理IC为什么没有过电压保护，同时过流保护和短路保护时会哒哒的响，建议STAND-BT进入NORMAL时，分段开启！有这方面的IC吗？
答： Some of the devices have over voltage protection, eg. NCP1209.  Users can add some external components to achieve OVP for those ICs that do not have such built-in function.  During overload or short circuit, it is already under fault co

问：如何将低压控振荡器的功率，安森美又
5v电源供电，0-50MHz的产品吗？
答： I have problem to understand your question.
Are you looking for high switching frequency converters ?
Can you ask your question again ?

问：在推进降低待机能耗的过程中，电源管理技术是重中之重,贵公司生产的电源管理芯片能将待机功耗从8W降到多少？在电源管理芯片的线路上做了哪些多优化，在待机状态采用了哪些技术，
答： The technology was covered in the presentation, e.g., HV start up, pulse-skipping, etc. We have examples showed in the slides that ON"s part can achieve <0.1W.  Of course, it depends on applications.

问：请问 电源输入电压对待机功能耗有多大的影响
答： Yes, Again Primary is very important for standby power consumption, the higher the input voltage, the more difficult to decrease standby power, that means for a contry using 110VAC, and 220VAC, the first one would comes lower standby power under same ours

问：请问 电源输入电压波动对待机功能耗有多大的影响
答： Usually, higher standby power is needed for higher AC input voltage.

问：曾经有报道说家庭待机能耗水平平均占用耗电总量的8％，其中视听产品的待机功耗占总待机功耗的68.6％，炊具占13.2％，电话占7.8％，制冷设备占7.7％，其他占2.7％，请问这个数据准确吗？
答： It depends on country to country.  We have some statitics to compare.  For sure, audio/visual products are key sources.

问：待机功耗与电源的转换效率有什么联系？
答： Generally speaking, an efficient power supply at full load will be easier to meet standby power requirement at light load or low load.  However, standby power regulation is get tighter and tighter.  One need special scheme to achieve st