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2 Threads found on edaboard.com: Self Compensation
Hello, I wish to add slope compensation to a self oscillating boost converter, it is 12V input and Vout = 90V (its 36 amber leds in series at I = 30mA). The circuit inductor squeals like mad, and i wish to add slope compensation, -there is no oscillator, so i suppose i have to couple the drain volage back to the source current sense as (...)
The bipolar's Is variation with the process is too large in standard CMOS process, anyone could tell me how to compensation this effect ? Any way to self compensate process effect on chip? Thanks very much!!!