Relay drive unit

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United States of America Patent

PATENT NO 8896981
SERIAL NO

13662623

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Abstract

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A relay drive unit drives a relay by supplying a power source voltage from a battery. The relay drive unit includes a power source voltage detector, a drive signal generator, and a relay drive circuit. The power source voltage detector detects the power source voltage. The drive signal generator generates a PWM signal as a drive signal for maintaining the relay in an ON state. The PWM signal has a preset duty ratio according to a magnitude of the power source voltage detected by the power source voltage detector. The relay drive circuit turns a supply of the power source voltage from the battery on/off based on a duty ratio of the drive signal generated by the drive signal generator.

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Patent Owner(s)

Patent OwnerAddress
DENSO CORPORATIONKARIYA-CITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adachi, Ryo Kiyosu, JP 2 3
Isozaki, Tsuneyoshi Nagoya, JP 1 3
Itou, Akito Kariya, JP 31 231
Matsuo, Katsumi Anjo, JP 3 16

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