The invention discloses an alternating current heater inspection circuit applied to an icing detection system. The heater is connected in series with a heating branch and a detection branch which are connected in parallel and then connected to two ends of the AC power supply; the detection branch comprises a rectifier diode D1, a divider resistor and a conduction resistor R115 which are sequentially connected in series, the two ends of the conduction resistor R115 are correspondingly connected to the input end of an optical coupler GH302, and the output end of the optical coupler GH302 is correspondingly connected with the single chip microcomputer and the signal ground. According to the invention, normal operation of the icing detection system can be ensured.
本发明公开了一种应用于结冰探测系统的交流加热器检查电路。加热器与相互并联的加热支路和检测支路串联后接入交流电源两端;检测支路包括依次串联的整流二极管D1、分压电阻和导通电阻R115,导通电阻R115的两端对应接入光耦GH302的输入端,光耦GH302的输出端对应与单片机和信号地连接。本发明能保证结冰探测系统的正常运行。
AC heater inspection circuit applied to icing detection system
一种应用于结冰探测系统的交流加热器检查电路
2023-03-17
Patent
Electronic Resource
Chinese
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / 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 |
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