发明名称 |
Voltage detecting apparatus with voltage controlled oscillator and battery state control system |
摘要 |
In a voltage detecting apparatus, a voltage controlled oscillator, when an input voltage is applied thereto, outputs a signal with a logical value that is periodically inverted. A detector counts a number of logical inversion of the output signal from the voltage controlled oscillator over an interval between edges of pulses of a pulse signal to thereby generate, based on the counted number of logical inversion, digital data as a detected result of the input voltage. A determiner determines whether a reduction of a time required to detect the input voltage is higher in priority than an increase of a resolution of detection of the input voltage. A variably setting unit variably sets a frequency of the pulse signal based on a result of the determination of whether the reduction of the time required to detect the input voltage is higher in priority than the increase of the resolution of detection of the input voltage. |
申请公布号 |
US8305043(B2) |
申请公布日期 |
2012.11.06 |
申请号 |
US20090418069 |
申请日期 |
2009.04.03 |
申请人 |
YAMAMOTO HIROYOSHI;TAMURA HIROSHI;DENSO CORPORATION |
发明人 |
YAMAMOTO HIROYOSHI;TAMURA HIROSHI |
分类号 |
H02J7/04;G01N27/416;H02J7/16 |
主分类号 |
H02J7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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