内燃機関の燃料噴射装置 - Honda motor industry stock company

Title:

内燃機関の燃料噴射装置

Document Type and Number:

Japanese Patent JP6504906

Kind Code:

B2

Abstract:

A step-down circuit is connected to an output of a step-up circuit that steps up a battery voltage, and an output of the step-down circuit is connected to a power supply input terminal of a CPU via an FET. The step-down circuit is normally maintained in an inactive state and, in response to an ignition switch being turned off, the CPU causes the step-down circuit to actuate and a stepped-down voltage (equal to a stabilized voltage) is output from the step-down circuit. The stepped-down voltage is further stepped down to a CPU power supply voltage, and the CPU power supply voltage is supplied to the power supply input terminal of the CPU. This allows the residual charge of the step-up circuit to be dissipated by the step-down circuit and the CPU.

Inventors:

Yohei
Atsushi Kurauchi

Application Number:

JP2015095674A

Publication Date:

April 24, 2019

Filing Date:

May 08, 2015

Export Citation:

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