The speed of today s micro-controller has been easily achieved through software, all that. And even more interesting is the voltage meter and ammeter become free Charge by-product. Micro-controller control loop in any case have to be aware of voltage and current values. You have to show that it happened. We must microcontroller Device get is: 1 at all times be used to measure voltage and current of the A/D converter one under the command and provide the basis for the power transistor Voltage of D/A converter. The problem is that D/A converter to be very fast speed. If the output short circuit is detected, then we must Shall immediately reduce the voltage on the transistor B pole, otherwise the transistor will be damaged. "Fast" means to achieve milliseconds, as the operator put Like Da-qi. Atmega8 of the A/D converter has been fast enough, but apparently it does not D/A converter. The use of pulse-width modulation and analog low-pass filter Wave device be able to get a D/A

数字电源\analog.c
........\analog.h
........\avr_compat.h
........\dac.c
........\dac.h
........\ddcp.c
........\ddcp.hex
........\ddcp_pre.hex
........\hardware_settings.h
........\kbd.c
........\kbd.h
........\lcd.c
........\lcd.h
........\lcdtest.c
........\lcd_hw.h
........\Makefile
........\README
........\数字电源.pdf
数字电源

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