PCB factory not trade company; Over10 years PCB producing experience; SGS CQC RoHS UL ISO9001 certifications; Special produce all kinds of 2-24 layers PCB board; Testing Procedure1 Visual Inspection2 Flying probe3 Impedance control4 Solder-ability detection5 Digital metallograghic microscope6 AOI ...
b Circuit diagram and optical image of the f-PCB for step-up voltage conversion and LED operation. The block diagram shows an operating sequence with the output voltage and power after each block. c Input and output voltages of the step-up converter when the TEG was put on a hot plate....