Undershoot/overshoot protecting circuit
US6215347A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1998 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Oct 26, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/088
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
After an output signal is inverted by an inverter circuit, the resultant signal is differentiated by a differentiating circuit. The connecting states of selectors are changed so that only when the signal level of the differentiated output exceeds a predetermined threshold value, the output signal is sent through a resistor. After the output signal is buffered by a buffering circuit, the resultant signal is differentiated by a differentiating circuit. The connecting states of selectors are changed so that only when the signal level of the differentiated output exceeds a predetermined threshold value, the output signal is sent through a resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.