发明授权
US5606227A Surge generator having a low voltage transformer winding connected to a
high voltage winding
失效
具有连接到高压绕组的低压变压器绕组的浪涌发生器
- 专利标题： Surge generator having a low voltage transformer winding connected to a high voltage winding
- 专利标题（中）： 具有连接到高压绕组的低压变压器绕组的浪涌发生器
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申请号： US538044申请日： 1995-10-02
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公开(公告)号： US5606227A公开(公告)日： 1997-02-25
- 发明人: Noboru Yamamoto , Masamichi Ishikawa , Kenji Yoneima
- 申请人： Noboru Yamamoto , Masamichi Ishikawa , Kenji Yoneima
- 申请人地址： JPX Kariya
- 专利权人： Nippondenso Co., Ltd.
- 当前专利权人： Nippondenso Co., Ltd.
- 当前专利权人地址： JPX Kariya
- 优先权： JPX6-246560 19941012
- 主分类号： H05B41/282
- IPC分类号： H05B41/282 ; H05B41/288 ; H05B41/38 ; H05B41/392 ; H05B37/02
摘要：
A semiconductor switching element is connected to the first winding of a transformer. A smoothing capacitor is connected to the second winding of the transformer through a rectifier diode. The charging voltage Va of this smoothing capacitor serves as the applied voltage of a discharge lamp. When the discharge lamp is lighting, the second winding serves as a power source for supplying power to the discharge lamp. A capacitor is connected to the third winding of the transformer through a rectifier diode. The charging voltage of this capacitor serves as the applied voltage of a discharge tube. When the discharge tube discharges, a high-voltage starting pulse is provided to the secondary winding of a high-voltage coil, thereby rendering the discharge lamp ready for lighting. Therefore, when the discharge lamp is starting, the third winding serves as a power source for supplying starting power to the discharge lamp.
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