发明名称 |
MOBILE WIRELESS COMMUNICATIONS DEVICE INCLUDING SENSING TRANSISTOR AND HYSTERETIC COMPARATOR AND RELATED METHODS |
摘要 |
A mobile wireless communications device may include a portable housing, and a supply modulator carried by the portable housing. The supply modulator may include an output node, a linear amplifier coupled to the output node, and a switching amplifier also coupled to the output node. The switching amplifier may include at least one sensing transistor configured to sense current output from the linear amplifier and generate a drive voltage, and a hysteretic comparator coupled to the at least one sensing transistor and configured to be driven by the drive voltage. The mobile wireless communications device may also include a radio frequency (RF) power amplifier coupled to the output node of the supply modulator, and a wireless transceiver carried by the portable housing and coupled to the RF power amplifier. |
申请公布号 |
CA2802169(C) |
申请公布日期 |
2016.06.28 |
申请号 |
CA20132802169 |
申请日期 |
2013.01.17 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
RYU, SEONG-RYONG;MUHAMMAD, KHURRAM |
分类号 |
H04W88/02;H03F3/189;H03F3/20 |
主分类号 |
H04W88/02 |
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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