The invention relates to a band-type brake control circuit. The circuit comprises a rectification circuit, a PWM square wave output circuit and a field effect transistor; the rectification circuit isused for converting commercial power into direct-current voltage; the PWM square wave output circuit is used for controlling the on-off of the field effect transistor so as to output a band-type brakevoltage. The band-type brake control circuit further comprises a starting time adjusting circuit and a band-type brake voltage adjusting circuit, wherein the starting time adjusting circuit is used for receiving the direct-current voltage output by the rectification circuit and outputting an enable signal to the band-type brake voltage adjusting circuit; the band-type brake voltage regulating circuit regulates output parameters of the PWM square wave output circuit according to the enable signal; the starting time and the band-type brake voltage of the band-type brake control circuit can be adjusted as required, and circuit setting or software programs do not need to be changed, so that the compatibility of the band-type brake control circuit is greatly improved.
一种抱闸控制电路,包括整流电路、PWM方波输出电路以及场效应管。所述整流电路用于将市电转换成直流电压。所述PWM方波输出电路用于控制所述场效应管的通断以输出抱闸电压。所述抱闸控制电路还包括启动时间调节电路和抱闸电压调节电路。所述启动时间调节电路用于接收整流电路输出的直流电压,并输出使能信号至所述抱闸电压调节电路。所述抱闸电压调节电路根据所述使能信号调节所述PWM方波输出电路的输出参数。由于抱闸控制电路中的启动时间和抱闸电压都可以根据需要调节,无需更改电路设置或者修改软件程序,从而极大地提高了抱闸控制电路的兼容性。
Band-type brake control circuit and elevator control system
抱闸控制电路及电梯控制系统
2020-10-13
Patent
Electronic Resource
Chinese
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B66B Aufzüge , ELEVATORS |
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