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发明名称
电风扇温控循环定时器
摘要
一种由温度控制的自动循环式定时器,包括整流稳压电源,继电器和由二个时基集成电路分别组成一个单稳态电路和一个无稳态电路,二个不同稳态的电路由电阻、电容、二极管和三极管耦合。单稳态电路触发端接有热敏电阻,可变电阻组成的分压电路,调节可变电阻可进行温度控制,单稳态电路强制复位可取消温控。调节无稳态电路可变电阻可改变定时器开通时间或间断时间。本实用新型具有延时时间准确,控温性能好。可作单次不循环定时,还可作恒温控制。
申请公布号
CN2051300U
申请公布日期
1990.01.17
申请号
CN89200320.0
申请日期
1989.01.03
申请人
廖志雄
发明人
廖志雄
分类号
F04D27/02
主分类号
F04D27/02
代理机构
代理人
主权项
1、一种包括整流稳压电源的温度控制自动循环定时器,其特征在于它采用二个时基集成电路,可变电阻、电容,热敏电阻、二极管,按钮开关分别组成电压分压电路,温度检测单稳态电路,无稳态电路,并且用三极管BG1、电阻R4、电容C5、二极管D5、发光二极管LED1、电阻R5将单稳态电路和无稳态电路耦合,无稳态电路时基集成电路IC3输出端脚3与继电器J相接,电器负载通过继电器常开触点J1或常闭触点J2接入交流电源。
地址
广西壮族自治区柳州市柳江造纸厂机修车间
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