发明名称 |
Bridge rectifier circuit. |
摘要 |
<p>A bridge rectifier circuit comprises a bridge of switching transistors 1 to 4 having their control terminals connected to switch the transistors to provide either full wave rectification of an a.c. input voltage or polarity correction of a d.c. input voltage of either polarity appearing at terminals A and B. The switching transistors are all of the same polarity type and at least two floating drivers 6 and 7 are connectd to generate and supply control potentials to the control terminals respectively of a pair of the switching transistors.</p><p>In a preferred embodiment the switching transistors comprise field effect transistors. The floating drivers can comprise at least one respective bridge rectifier 12 capacitively linked to a source of vol ie pulses 10 when the input voltage has a predetermined poiarity, to generate the control potentials. Alternatively the floating drivers can comprise a voltage doubler or quadrupler capacitively linked to the source of voltage pulses. Such bridge rectifier circuits can be employed in a telephone instrument.</p> |
申请公布号 |
EP0112119(A2) |
申请公布日期 |
1984.06.27 |
申请号 |
EP19830307427 |
申请日期 |
1983.12.06 |
申请人 |
SILICONIX LIMITED |
发明人 |
JENKINS, JAMES OLIVER MICHAEL;GARDNER, NIGEL CARRINGTON |
分类号 |
H02M7/219;(IPC1-7):02M7/217 |
主分类号 |
H02M7/219 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|