| 发明名称 | Power supply voltage regulating apparatus, integrated circuit, and electronic apparatus | ||
| 摘要 | A power supply voltage regulating apparatus includes: a reference voltage generating circuit that generates a reference voltage; an operational amplifier that amplifies the reference voltage and outputs the amplified reference voltage as a power supply voltage; a switching circuit that is connected between an output terminal of the operational amplifier and ground, and that performs a switching operation; a ring oscillator that is connected in parallel with the switching circuit between the output terminal of the operational amplifier and ground, and that generates an oscillation signal; and a controller that is connected with an input terminal of the reference voltage generating circuit, and that controls the reference voltage in accordance with an oscillating frequency of the oscillation signal, a temperature of the switching circuit, and an operating frequency of the switching circuit, to regulate the power supply voltage that is output from the operational amplifier. | ||
| 申请公布号 | US9146568(B2) | 申请公布日期 | 2015.09.29 |
| 申请号 | US201514609411 | 申请日期 | 2015.01.29 |
| 申请人 | PANASONIC CORPORATION | 发明人 | Takahashi Kouji;Ohba Makoto |
| 分类号 | G05F1/575;G05F1/46 | 主分类号 | G05F1/575 |
| 代理机构 | Greenblum & Bernstein, P.L.C. | 代理人 | Greenblum & Bernstein, P.L.C. |
| 主权项 | 1. A power supply voltage regulating apparatus comprising: a reference voltage generating circuit that generates a reference voltage; an operational amplifier that amplifies the reference voltage and outputs the amplified reference voltage as a power supply voltage; a switching circuit that is connected between an output terminal of the operational amplifier and ground, and that performs a switching operation; a ring oscillator that is connected in parallel with the switching circuit between the output terminal of the operational amplifier and the ground, and that generates an oscillation signal; and a controller that is connected with an input terminal of the reference voltage generating circuit, and that controls the reference voltage in accordance with an oscillating frequency of the oscillation signal, a temperature of the switching circuit, and an operating frequency of the switching circuit, to regulate the power supply voltage that is output from the operational amplifier. | ||
| 地址 | Osaka JP | ||