Vehicle horn driving circuit

A driving circuit and speaker technology, which is applied to vehicle components, sounding devices, instruments, etc., can solve problems such as poor sounding, and achieve the effects of suppressing voltage changes, avoiding large-scale, and reliable sounding
CN100579823CInactive Publication Date: 2010-01-13HONDA MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HONDA MOTOR CO LTD
Publication Date
2010-01-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A horn electrical energization circuit 5 including an AC type horn H is connected to a multi-pole type AC power generator G while being independent from a circuit to be controlled with an AC regulator 2.
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Description

technical field

[0001] The present invention relates to an improvement in a vehicle horn drive circuit for driving an AC horn by power generated by an engine driven multi-pole alternator. Background technique

[0002] Patent Document 1 discloses a vehicle horn drive circuit in which an AC horn is connected to one end of a power generation coil included in a multi-pole alternator via a half-wave rectification unit.

[0003] Patent Document 1 Publication No. 63-42025

[0004] In the prior art described above, in order to prevent the natural frequency of the vibrating plate of the AC horn from mismatching with the frequency of the AC current output from the multi-pole alternator, the horn cannot emit sound especially in the high-speed rotation region of the motor. , and the AC current is provided to the excitation coil of the horn after half-wave rectification.

[0005] On the other hand, in order to convert the AC voltage obtained by the multi-pole alternator into a stable A...

Claims

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