公开(公告)号：US08461932B2

公开(公告)日：2013-06-11

申请号：US13240131

申请日：2011-09-22

Applicant: Atsuhiro Kai ,  Osamu Kukori

Inventor： Atsuhiro Kai ,  Osamu Kukori

IPC: H03F1/52

CPC classification number: H03F1/52 ,  H03F1/305 ,  H03F3/181 ,  H03F3/3081 ,  H03F2200/03 ,  H03F2200/426

Abstract: A signal amplifier includes an inverting amplification circuit, a first switching element, a second switching element, and a control section. The inverting amplification circuit includes a first voltage terminal, a second voltage terminal, an inverting input terminal, an output terminal, a first protected switching element, and a second protected switching element. The control section controls such that when an overcurrent has flowed in the first voltage line, the first and second protected switching elements are switched to a non-conducting state after switching the first switching element in a conducting state and switching the second switching element in a non-conducting state, and when an overcurrent has flowed in the second voltage line, the first the second protected switching elements are switched to a non-conducting state after switching the first switching element in a non-conducting state and switching the second switching element in a conducting state.

Abstract translation: 信号放大器包括反相放大电路，第一开关元件，第二开关元件和控制部分。 反相放大电路包括第一电压端子，第二电压端子，反相输入端子，输出端子，第一保护开关元件和第二受保护的开关元件。 控制部分控制使得当过电流在第一电压线中流动时，在将第一开关元件切换到导通状态之后，将第一和第二受保护的开关元件切换到非导通状态，并将第二开关元件切换到 非导通状态，并且当过电流在第二电压线中流动时，第一受保护的开关元件在将第一开关元件切换到非导通状态之后切换到非导通状态，并且切换第二开关元件 处于进行状态。