发明名称 |
Solar energy powered street light fitting - has self-programming electronic control effective according to battery charge and/or received radiation by day |
摘要 |
A photovoltaic cell array (10) charges a secondary battery (12) via a diode (11) in a regulatory circuit including two semiconductor switches (13,24) wired to a microprocessor (15). The irradiation of the array and the voltage of the battery are monitored by resistive voltage dividers (17,18;20,21). The microprocessor is programmed to compare the brightness with a twilight criterion, to switch the lamp(s) (14) on and off, and to monitor the battery charge with temp. compensation by NTC resistor (23). USE/ADVANTAGE - For street lighting, without need for maintenance but with automatic matching to varying ambient light.
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申请公布号 |
DE4107107(A1) |
申请公布日期 |
1992.09.10 |
申请号 |
DE19914107107 |
申请日期 |
1991.03.06 |
申请人 |
SAMAK, IBRAHIM, DIPL.-ING., 7300 ESSLINGEN, DE |
发明人 |
VERZICHT DES ERFINDERS AUF NENNUNG |
分类号 |
H05B37/02 |
主分类号 |
H05B37/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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