发明名称 |
Current feed control circuit and electronic appliance using the same |
摘要 |
<p>The constitution comprises a heater 2 used as current receiving element, a thyristor 3 placed in the current travelling route of the heater 2, a series connection circuit of a capacitor 4 and diode 5 for control power source connected parallel to the thyristor 3, a Zener diode 9 as a constant voltage element connected to the gate of the thyristor 3, and a control circuit 6 connected parallel to the capacitor 4, with its output connected to the gate of the thyristor 3, whereby a specified control voltage determined by the Zener voltage of the Zener diode 9 is obtained at the first capacitor 4 by the control of the thyristor 3, so that the transformer for stepping down the supply voltage is not necessary. <IMAGE></p> |
申请公布号 |
EP0823682(A1) |
申请公布日期 |
1998.02.11 |
申请号 |
EP19970113758 |
申请日期 |
1997.08.08 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ABE, TAISUKE;KIKUOKA, MITSUHIKO;MATSUDA, KENGO;SEGAWA, MASAMI |
分类号 |
G05F3/18;(IPC1-7):G05F3/18 |
主分类号 |
G05F3/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|