基本信息:
- 专利标题: FEEDBACK ARRANGEMENT
- 专利标题(中):反馈安排
- 申请号:PCT/US1980000511 申请日:1980-04-22
- 公开(公告)号:WO1980002484A1 公开(公告)日:1980-11-13
- 发明人: DYNAMIC COMPLIANCE INC , CARLSEN G
- 申请人: DYNAMIC COMPLIANCE INC
- 专利权人: DYNAMIC COMPLIANCE INC
- 当前专利权人: DYNAMIC COMPLIANCE INC
- 优先权: US36050 19790504
- 主分类号: H03F01/34
- IPC分类号: H03F01/34
摘要:
An arrangement to provide feedback to amplifier systems incorporating an electrical load. A current transformer in conjunction with a resistor is incorporated to provide a feedback correction signal to an amplifier which corrects for distortion caused by both the amplifier and the inductive load. A first embodiment provides a single-ended amplifier driving a load (27) and incorporates the current transformer (24) between the output of the amplifier (23) and the load (27). The secondary winding (26) of the transformer (24) is in series with the input to the amplifier, and a resistor (22) is connected across the secondary winding. The transformer (24) determines the frequency bandwidth of the entire amplifier system, and the resistor value determines the gain of the amplifier. Such a configuration provides negative feedback to the amplifier which is directly proportional to changes in current in the load. The second embodiment applies the principles of the present invention to a differential amplifier configuration. The primary winding (35) of the current transformer (34) is connected between the output of the amplifier (33) and one end of the load (38). A secondary winding (36) of the transformer is connected to the other end of the load (38) and to the negative input of the differential amplifier (33). A resistor is connected across the secondary winding (36) of the transformer (34).