| 发明名称 | Power supply circuit | ||
| 摘要 | A power supply circuit to supply an internal voltage to an output node includes: a pull-up driver, in response to a result obtained by comparing the internal voltage to a first reference voltage, configured to generate the internal voltage from a power supply voltage, a pull-down driver, in response to a result obtained by comparing the internal voltage to a second reference voltage, configured to discharge the internal voltage, a pull-up drive blocking unit configured to block the pull-up driver from being driven, in response to the result obtained by comparing the internal voltage to the second reference voltage, and a pull-down drive blocking unit configured to block the pull-down driver from being driven, in response to the result obtained by comparing the internal voltage to the first reference voltage. | ||
| 申请公布号 | US8917137(B2) | 申请公布日期 | 2014.12.23 |
| 申请号 | US201213724143 | 申请日期 | 2012.12.21 |
| 申请人 | SK Hynix Inc. | 发明人 | Lee Kyoung Youn |
| 分类号 | G05F1/10;G05F3/02;H02M3/158;G05F1/00 | 主分类号 | G05F1/10 |
| 代理机构 | William Park & Associates Patent Ltd. | 代理人 | William Park & Associates Patent Ltd. |
| 主权项 | 1. A power supply circuit to supply an internal voltage to an output node, comprising: a pull-up unit configured to include a pull-up driver and a first comparator, wherein the first comparator is configured to compare the internal voltage to a first reference voltage, and the pull-up driver is configured to be driven to pull up the internal voltage in response to a result obtained by comparing the internal voltage to the first reference voltage; a pull-down unit configured to include a pull-down driver and a second comparator, wherein the second comparator is configured to compare the internal voltage to a second reference voltage, and the pull-down driver is configured to pull-down the internal voltage in response to a result obtained by comparing the internal voltage to the second reference voltage; a pull-up drive blocking unit configured to block the pull-up driver from being driven, in response to the result obtained by comparing the internal voltage to the second reference voltage; and a pull-down drive blocking unit configured to block the pull-down driver from being driven, in response to the result obtained by comparing the internal voltage to the first reference voltage. | ||
| 地址 | Gyeonggi-do KR | ||