Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

Kazuhiro Taguchi

Tomohiro Ando

Akihiro Murayama

According to one embodiment, a current detection circuit includes a current detection part including an operational amplifier configured to compare a first voltage proportional to a load current with a second voltage proportional to a detection current. The current detection part is configured to output the detection current. The current detection circuit includes an adjustment part configured to generate data in accordance with a result of comparing a monitor voltage proportional to the detection current with a reference voltage, and to adjust an input offset of the operational amplifier.

Current detection circuit, current detection system, and method of adjusting current detection circuit

According to an embodiment, a semiconductor integrated circuit device has a first switching element that is connected between first and second nodes, a second switching element that is connected between the first node and a third node and outputs a current that is 1/K times as much as an output current of the first switching element, and an amplifier that controls, by a signal provided by amplifying a voltage difference between the third node and a fourth node, a conduction state of a third switching element that is connected between the fourth node and a fifth node.

Semiconductor integrated circuit device and current detection circuit

A control circuit for controlling a power semiconductor element includes a temperature detection circuit configured to detect a temperature signal of the power semiconductor element, a current detection circuit configured to detect a current signal flowing through the power semiconductor element, a state determination circuit configured to receive the detected temperature signal and the detected current signal, determine a state of the power semiconductor element based on at least one of the detected temperature signal and the detected current signal, and output one or more output control signals indicating the determined state, and a driver circuit configured to control electric power supplied by the power semiconductor element based on the output control signals.

Control circuit and power module

A semiconductor integrated circuit according to an embodiment includes: an output circuit configured to cause a current to flow out from an output terminal to a control target or cause a current to flow in from the control target via the output terminal, based on a control signal; a current source portion provided for the output circuit and configured to be capable of switching a current suppliable to the output terminal; and an adjustment circuit configured to switch a current that the current source portion is caused to generate, based on the control signal.

Growing community of inventors

Yokohama Kanagawa, Japan

Kazuhiro Taguchi