发明名称 |
Inductive load driving amplifier |
摘要 |
An inductive load driving amplifier is disclosed which includes two serially connected transistors, with Zener diodes limiting the collector-emitter voltage of the one and diverting the collector-base current of the other when the first one switches off. The driver is implemented as an integrated circuit. This collector isolation constitutes a high voltage Zener diode which contributes to limit the collector voltages. The combination of these features prevents the device from being exposed to second breakdown when switching highly inductive loads (e.g. several Henrys under 50V), thereby avoiding the harmful effects of breakdowns during switching.
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申请公布号 |
US4096400(A) |
申请公布日期 |
1978.06.20 |
申请号 |
US19770788094 |
申请日期 |
1977.04.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FERRY, MICHEL FRANCOIS M. S.;REYNES, DANIEL FRANCOIS |
分类号 |
H01H47/32;H01F7/18;H01L27/07;H03K17/0814;H03K17/10;H03K17/64;(IPC1-7):H03K17/60 |
主分类号 |
H01H47/32 |
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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