发明名称 |
Ground drift-free switching circuit |
摘要 |
A switching circuit for selectively switching either of two input signals to an output circuit employs electrically isolated separate input circuits with independent grounds to prevent drift of the output signal delivered by the output circuit. Circuit isolation and independent grounds are made possible by the use of a single relay employing separate poles acting with two pairs of contacts respectively coupled with the input circuits. The switching circuit may be employed in a temperature control system for alternately coupling temperature and calibration signals to a temperature controller.
|
申请公布号 |
US6015967(A) |
申请公布日期 |
2000.01.18 |
申请号 |
US19980072934 |
申请日期 |
1998.05.05 |
申请人 |
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. |
发明人 |
CHUANG, CHENG-WOEI;GUAN, KUEN LIN |
分类号 |
G05D23/19;(IPC1-7):H05B1/02 |
主分类号 |
G05D23/19 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|