发明名称 |
Limitador eletronico de corrente de curto-circuito |
摘要 |
A current limiting short-circuiting protector is disclosed which utilizes an electronic and thermal feedback principle for achieving precise and rapid release of the protector, which can be readily reset. The principle utilizes a non-linear powerful temperature-dependent resistor in the collector circuit of a field effect transistor which serves as a current valve and through which the total current to be monitored is passed. The circuit replaces a conventional fuse and may also function as a load on/off control means. When a fault occurs in the load, the erroneous current is limited to a much lower value than is the case with a conventional fuse. |
申请公布号 |
BR9305736(A) |
申请公布日期 |
1997.01.28 |
申请号 |
BR19939305736 |
申请日期 |
1993.11.10 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
FOLKE EKELUND;LEIF HANSSON |
分类号 |
H02H9/02;H02H3/02;H02H3/087;H02H5/04;H03K17/08;H03K17/082;H03K17/18;H03K17/795 |
主分类号 |
H02H9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|