发明名称 |
LOW POWER DIGITAL SIGNAL ISOLATOR |
摘要 |
A signal isolating device for an input digital signal has a first photo-coupler which is activated by the differential pulse produced at the leading edge of the digital signal and a second photo-coupler which is activated by the differential pulse produced at the trailing edge of the digital signal. A positive feedback system is connected in push-pull fashion with the photo-couplers for producing an output digital signal that corresponds to the input digital signal. The positive feedback system may be implemented by a buffer that includes a resistor for keeping the buffer in a stable state even when both of the photo-couplers are non-conductive.
|
申请公布号 |
CA2230749(A1) |
申请公布日期 |
1998.09.03 |
申请号 |
CA19982230749 |
申请日期 |
1998.03.02 |
申请人 |
ELSAG INTERNATIONAL N.V. |
发明人 |
NEMER, JOSEPH C.;HEMPHILL, BRIAN D. |
分类号 |
H04B10/00;(IPC1-7):H03K19/017 |
主分类号 |
H04B10/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|