发明名称 |
AN ELECTRONIC INDUCTANCE CIRCUIT FOR THE POWER SUPPLY OF A 2-WIRE BUS INTERCOM SYSTEM AND A DEVICE THEREOF |
摘要 |
The present invention discloses an electronic inductance circuit for the power supply of a 2-wire bus intercom system and a device thereof. The electronic inductance circuit comprises a main circuit path along an inductor and a source terminal and a drain terminal of a FET between the input terminal and the output terminal of said electronic inductance circuit, in which said inductor is connected to said source terminal of said FET; a resistor and a freewheeling diode individually connected to said inductor in parallel; and a secondary circuit path along a capacitor connected with a second resistor in series between said input terminal and said output terminal, which is connected to said main circuit path in parallel. The solutions of the present invention achieve larger direct current power supply for the 2-wire intercom system and stable alternating current impedance with fast response to the DC power supply. |
申请公布号 |
EP2745501(A4) |
申请公布日期 |
2015.04.01 |
申请号 |
EP20120874376 |
申请日期 |
2012.04.16 |
申请人 |
ABB TECHNOLOGY LTD. |
发明人 |
ZHOU, DALIN;ZHANG, YANGPENG;LIU, MINGYUAN |
分类号 |
H03H11/48;H02M3/156;H03H11/04;H04M9/06;H04M19/00 |
主分类号 |
H03H11/48 |
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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