Application Circuits of LT1725 and MAX699

Published:2011/7/17 5:30:00 Author:Michel | Keyword: Application Circuits | From:SeekIC

The picture a and b are application circuits of LT1725 and MAX699.The picture a is the regulated circuit of LT1725.Isolation power uses transformer and couplers etc.The isolation device adopts transformer and the controller uses LT1725.The guideline of the stable power is shown as follows.The input DC voltage is 100~300V,output voltage is 5V and output current is 1OOmA~1A.The conversion rate is 70%, regulated rate is ±3% and isolation degree is 500V (DC)when it is full load. The picture b is single end transformer of induction composed of MAX699 etc. The input voltage of this kind of transformer is 2.5~5.5V and the output current can reach 500mA.The dvice is chosen according to the voltage limit.



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