发明名称 |
CANCEL VOLTAGE OFFSET OF OPERATIONAL AMPLIFIER |
摘要 |
A system according to examples of the present disclosure includes a battery charger electrically coupled to a battery and a battery charging circuit. The battery charging circuit includes an operational amplifier having a negative input to receive a pre-bias voltage, a positive input, an output, and a voltage offset. The battery charging circuit also includes a charge controller having an analog-to-digital converter to receive a voltage output from the output of the operational amplifier and a voltage supply to supply a voltage input into the positive input of the operation amplifier to cancel the voltage offset of the operational amplifier. In the example, the voltage output of the charge controller is a function of the voltage input of the charge controller. |
申请公布号 |
WO2016003429(A1) |
申请公布日期 |
2016.01.07 |
申请号 |
WO2014US44942 |
申请日期 |
2014.06.30 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
SAWYERS, THOMAS;LLOYD, JON, G. |
分类号 |
H02J7/00;G06F1/26;H03F3/45 |
主分类号 |
H02J7/00 |
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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