Power voltage drop detecting circuit
US4716323A · kind A · utility
25Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1986 |
| Grant date | Dec 29, 1987 |
| Priority date | — |
| Expiry date | Apr 25, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/356008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A power voltage drop detecting circuit includes VDD and ground terminals supplied with power voltage VD, a resistor connected at one end to the VDD terminal, a MOS transistor connected between the other end of the resistor and the ground terminal, and a CMOS inverter for producing an output signal according to a voltage at the junction between the resistor and the MOS transistor. The detecting circuit further includes a control pad connected to the control gate of the n-channel MOS transistor and supplied with control voltage VC at different levels in the test mode and detect modes, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.