发明名称 |
TRANSMITTER HAVING SUPPLEMENTAL POWER SOURCE |
摘要 |
A transmitter (100) incorporates an energy storage device (112) to improve operation at low temperature ranges by preventing a battery voltage from dropping below a nominal value of a PLL (104). A processor (106) in the transmitter (100) checks a voltage across the battery (102) during a previous transmission and monitors the temperature from a temperature sensor (110). If the battery voltage and/or the temperature fall below a selected threshold, the energy storage device (112) stores energy that is released when the PLL (104) transmits a signal. By supplementing the energy from the battery (102) with energy from the energy storage device (112), the transmitter (100) keeps the battery voltage from dropping below the nominal value. |
申请公布号 |
WO2004070960(A1) |
申请公布日期 |
2004.08.19 |
申请号 |
WO2003US37235 |
申请日期 |
2003.11.21 |
申请人 |
SIEMENS VDO AUTOMOTIVE CORPORATION |
发明人 |
DENIAU, JEAN-CHRISTOPHE |
分类号 |
H02J7/00;H02J7/34;H03L7/06;H04B1/16 |
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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