Kabushiki Kaisha Toshiba

Nissan Motor Company Limited

Akira Yamashita

Shigeki Matsunaka

Koichi Furukawa

Tsutomu Kojima

Yoshitaka Kawada

Hiroshi Takei

Morio Takahashi

Noriaki Goto

Teruaki Orikasa

Masatoshi Omura

A gate driver includes an edge detection circuit, an ON pulse generation circuit, first and second OFF pulse generation circuit and a status hold circuit. The first OFF pulse generation circuit generates a first OFF pulse in response to a leading or trailing edge of a control input signal, which is detected by the edge detection circuit. The status hold circuit drives an output element in response to the ON pulse outputted from the ON pulse generation circuit and holds driving status of the output element until a first OFF pulse is outputted from the first OFF pulse generation circuit. The second OFF pulse generation circuit generates a second OFF pulse in response to a protect operation signal and supplies this pulse to the status hold circuit, thereby to stop driving of the output element.

Gate driver for driving a switching element, and a power converter in which the gate driver and an output element are integrated in one-chip

An oil pan for collecting a lubricating oil drained from an internal combustion engine and a lubricating oil dripped from a crankshaft of the engine, is disclosed. The oil pan includes a shallow oil collecting portion, a deep oil collecting portion and baffle plates forming first and second oil passages, respectively. The oil passages are adapted to force the lubricating oil collected at the shallow oil collecting portion toward the deep oil collecting portion and cooperate to facilitate the collection of the lubricating oil.

Oil pan for internal combustion engine

A copper film layer and a resin film are sequentially layered on a skin material, the resin film is irradiated with a laser beam so as to be removed, a mask is formed on the copper film layer by use of the residual of the resin film, thereafter, an etching process is provided thereto, so that a copper film layer pattern is formed on the reflective surface of the skin material.

Method of manufacturing a reflector

A power IC having at least a level shifter for changing the level of an input signal, a high-side driver circuit for driving a predetermined load in accordance with a level changed by the level shifter, the high-side driver circuit being in a floating state, and a reverse current preventing diode for disconnecting a current path from the ground of the level shifter to the reference potential of the high-side driver circuit. The high-side driver circuit and reverse current preventing diode are respectively dielectrically isolated by a dielectric member to prevent insufficient element isolation to be caused by bias conditions. The predetermined reference potential to be connected to an inductive load or the like in the high-side driver circuit can be set to a negative potential. The electrical energy stored in the inductive load or the like can be extracted out and attenuated at high speed via the reference potential set to the negative potential to thereby realize a high speed operation.

Dielectrically isolated power IC

Growing community of inventors

Yokohama, Japan

Akira Yamashita