Level shift circuit
US8405422B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Nov 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018521
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A level shift circuit is disclosed. The circuit includes a series circuit of a resistor and a switching device connected between a high voltage side power supply voltage in a secondary side voltage system and a low voltage side power supply voltage in a primary side voltage system, a series circuit of a resistor and a switching device connected between the high voltage side power supply voltage in the secondary side voltage system and the low voltage side power supply voltage in the primary side voltage system, and a latch malfunction protecting circuit operated in the secondary side voltage system to have voltages at a connection point of the resistor and the switching device and at a connection point of the resistor and the switching device inputted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.