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发明名称
电动自行车用LED照明灯驱动电路
摘要
一种基于反激式开关电源的电动自行车用LED照明灯驱动电路。该驱动电路由电源输入端、变压器、开关电路、稳压及限流电路组成。变压器包括与电源输入端联接的输入绕组、与外部负载联接的输出绕组和与开关电路联接的辅助绕组,输入绕组与RC吸收电路并联;开关电路包括开关控制电路和开关管,开关管与变压器输入绕组串联,RC开关控制电路与开关管连接;稳压电路与开关管连接、限流电路与RC开关控制电路及输出绕组联接,从而实现负载功率自动调整,将电动自行车蓄电池的直流电源转换成LED照明灯所需的电压及电流。
申请公布号
CN202261033U
申请公布日期
2012.05.30
申请号
CN201120399927.9
申请日期
2011.10.20
申请人
天津市自行车研究院
发明人
张云龙;邢春会;刘继萍
分类号
H02M3/335(2006.01)I
主分类号
H02M3/335(2006.01)I
代理机构
代理人
主权项
一种基于反激式开关电源的电动自行车用LED照明灯驱动电路,其特征是包括电源输入端、变压器、开关电路、稳压及限流电路;所述的变压器包括与电源输入端联接的输入绕组、与外部负载联接的输出绕组和与开关电路联接的辅助绕组,输入绕组与RC吸收电路并联;所述的开关电路包括开关控制电路和开关管,开关管与变压器输入绕组串联,RC开关控制电路与开关管联接;所述的稳压及限流电路包括稳压电路及三极管限流电路,稳压电路与开关管联接、三极管限流电路与RC开关控制电路及输出绕组联接。
地址
300111 天津市南开区黄河道501号
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