Electronic control device
US10833688B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Apr 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An inexpensive electronic control device is implemented that enables a power supply voltage supplied to a microcomputer to be varied using a simple method and that enables an identical power supply to be adapted to various microcomputers. A switch is turned on to determine the value of a discrete resistor, and a voltage based on the value of current from a current source and the resistance value of the discrete resistor is caused in an In1 terminal. By an A/D converter, the In1 terminal voltage is subjected to A/D conversion, and a digital code corresponding to the selectively connected discrete resistor is detected. The result of the A/D conversion is saved in a register, and the determination of the resistance value of the discrete resistor performed by the A/D converter is completed. After the completion of the resistance value determination performed by the A/D converter, power supply voltages start activation. The core voltage activates to secure a voltage corresponding to a reference voltage set by the register and thereby a desired power supply is completed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.