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公开(公告)号：US20150137892A1
公开(公告)日：2015-05-21
申请号：US14404135
申请日：2014-03-20
Inventor： Isao Imazeki , Masaki Kanemaru
IPC: H03F3/193
CPC classification number: H03F3/193 , H03F1/223 , H03F3/211 , H03F3/45179 , H03F2200/09 , H03F2200/222 , H03F2200/451 , H03F2200/541 , H03F2203/45394 , H03F2203/45644
Abstract: A polarity-switching amplifier circuit includes: a first amplifying transistor and a second amplifying transistor, a transformer which includes a primary winding and a secondary winding, and a polarity-switching controller. An unbalanced input signal is input to the first amplifying transistor and the second amplifying transistor. The transformer receives an output signal of the first amplifying transistor and an output signal of the second amplifying transistor as a balanced signal input to the primary winding, and outputs a signal from the secondary winding. The polarity-switching controller turns on one of the first amplifying transistor and the second amplifying transistor and turns off the other thereof.
Abstract translation: 极性切换放大电路包括：第一放大晶体管和第二放大晶体管，包括初级绕组和次级绕组的变压器，以及极性切换控制器。 不平衡输入信号被输入到第一放大晶体管和第二放大晶体管。 变压器接收第一放大晶体管的输出信号和第二放大晶体管的输出信号作为输入到初级绕组的平衡信号，并输出来自次级绕组的信号。 极性切换控制器接通第一放大晶体管和第二放大晶体管中的一个，并关闭另一个放大晶体管。
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公开(公告)号：US09602066B2
公开(公告)日：2017-03-21
申请号：US14404135
申请日：2014-03-20
Inventor： Isao Imazeki , Masaki Kanemaru
CPC classification number: H03F3/193 , H03F1/223 , H03F3/211 , H03F3/45179 , H03F2200/09 , H03F2200/222 , H03F2200/451 , H03F2200/541 , H03F2203/45394 , H03F2203/45644
Abstract: A polarity-switching amplifier circuit includes: a first amplifying transistor and a second amplifying transistor, a transformer which includes a primary winding and a secondary winding, and a polarity-switching controller. An unbalanced input signal is input to the first amplifying transistor and the second amplifying transistor. The transformer receives an output signal of the first amplifying transistor and an output signal of the second amplifying transistor as a balanced signal input to the primary winding, and outputs a signal from the secondary winding. The polarity-switching controller turns on one of the first amplifying transistor and the second amplifying transistor and turns off the other thereof.
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公开(公告)号：US09841486B2
公开(公告)日：2017-12-12
申请号：US14714235
申请日：2015-05-15
Inventor： Taiji Akizuki , Masaki Kanemaru
CPC classification number: G01R35/005 , G01R19/0084 , H02J5/005 , H03F1/02 , H03F3/24 , H03G3/3036 , H04B1/04 , H04B1/0458 , H04B1/0475 , H04B1/0483 , H04B2001/045
Abstract: A detection calibration circuit includes a first distributor distributing a high frequency input signal, an amplifier amplifying the first high frequency output signal of the first distributor, a second distributor distributing the amplified first high frequency output signal of the first distributor, a reference signal generator outputting a reference signal in accordance with a switchable reference voltage, a switcher selecting a third high frequency output signal of the second distributor or a reference signal of the reference signal generator and outputting the selected signal, a detector detecting the third high frequency output signal of the second distributor or the reference signal of the reference signal generator from the switcher, a sensitivity switcher adjusting a sensitivity for an output signal of the detector, and a calibration control circuit adjusting a detection gain of an input signal of the detector and an input-output sensitivity for an output signal of the detector.
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