Voltage regulator having an overheat detection circuit and test terminal
US10353415B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2018 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Mar 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To provide a voltage regulator capable of switching a voltage of an output terminal from an internal voltage to an external voltage while suppressing an increase in circuit scale. The voltage regulator includes a voltage output circuit configured to generate a constant internal voltage lower than an external voltage applied to an input terminal from the external voltage and supplying the constant internal voltage to an output terminal, a temperature sensing circuit configured to decrease an output voltage of an output node thereof according to a rise in temperature, an overheat detection circuit connected to the output node of the temperature sensing circuit and a test terminal, and a voltage detection circuit connected to the output node of the temperature sensing circuit and the test terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.