文件名称:shuzidianyuan
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今天的微控制器速度已经可以通过软件轻而易举地实现这一切。而且更妙的是电压表和电流表成了免
费的副产品。微控制器的控制环无论如何都必须知道电压和电流值。你刚好也要显示它。我们要从微控制
器得到的是:一个在所有时间都用来测量电压和电流的A/D 转换器;一个根据命令为功率三极管提供基准
电压的D/A 转换器。问题是那个D/A 转换器的速度要非常快。如果在输出端检测到了短路,那么我们必
须立即减小三极管B 极上的电压,否则这个三极管就会损坏。“快速”意味着要达到毫秒级,如同运算放
大器一样。Atmega8 的A/D 转换器已经足够快了,但显然它没有D/A 转换器。使用脉宽调制和模拟低通滤
波器是可以得到一个D/A 转换器的,但是这样速度太慢了,无法通过软件立即实现短路保护。-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
费的副产品。微控制器的控制环无论如何都必须知道电压和电流值。你刚好也要显示它。我们要从微控制
器得到的是:一个在所有时间都用来测量电压和电流的A/D 转换器;一个根据命令为功率三极管提供基准
电压的D/A 转换器。问题是那个D/A 转换器的速度要非常快。如果在输出端检测到了短路,那么我们必
须立即减小三极管B 极上的电压,否则这个三极管就会损坏。“快速”意味着要达到毫秒级,如同运算放
大器一样。Atmega8 的A/D 转换器已经足够快了,但显然它没有D/A 转换器。使用脉宽调制和模拟低通滤
波器是可以得到一个D/A 转换器的,但是这样速度太慢了,无法通过软件立即实现短路保护。-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
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下载文件列表
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
........\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