CN103648070A - Contactless electronic horn MOS (Metal Oxide Semiconductor) tube-made anti-reverse-connection circuit and anti-reverse-connection method thereof - Google Patents
Contactless electronic horn MOS (Metal Oxide Semiconductor) tube-made anti-reverse-connection circuit and anti-reverse-connection method thereof Download PDFInfo
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- CN103648070A CN103648070A CN201310709421.7A CN201310709421A CN103648070A CN 103648070 A CN103648070 A CN 103648070A CN 201310709421 A CN201310709421 A CN 201310709421A CN 103648070 A CN103648070 A CN 103648070A
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Abstract
Disclosed are a contactless electronic horn MOS tube-made anti-reverse-connection circuit and an anti-reverse-connection method thereof. The contactless electronic horn MOS tube-made anti-reverse-connection circuit and the anti-reverse-connection method thereof solves the problem that an electronic horn is permanently damaged and loses efficacy due to reverse polarity of a power supply and accordingly losses can be caused. The contactless electronic horn MOS tube-made anti-reverse-connection circuit comprises a master control circuit (1), one end of the master control circuit is connected with an anti-reverse-connection loop (2) and a heavy-load loop (3), the other end of the master control circuit is connected with a light-load loop (4) and the anti-reverse-connection loop, the heavy-load loop, the light-load loop and the anti-reverse-connection loop are all connected with an automobile power supply, and the light-load loop is connected with a coil (5) which is connected with an oscillator (6). The contactless electronic horn MOS tube-made anti-reverse-connection circuit and the anti-reverse-connection method thereof are applicable to automobile horns.
Description
technical field:
the present invention relates to a kind of contactless electronic loudspeaker and do reverse-connection preventing circuit and anti-reverse method with metal-oxide-semiconductor.
background technology:
electronic horn must possess the defencive function that reply electric power polarity connects anti-fault.When jumper cable is connected to wrong polarity terminal; or while being connected to the storage battery of overdischarge; and in the installation site of new accumulator, put upside down Shi Douhui and electric power polarity occurs connect instead; if do not take corresponding safeguard measure; electronic horn causes loudspeaker permanent damages, inefficacy during due to error-polarity connection of power supply, causes heavy losses.
summary of the invention:
the object of this invention is to provide a kind of contactless electronic loudspeaker and do reverse-connection preventing circuit and anti-reverse method with metal-oxide-semiconductor.
above-mentioned object realizes by following technical scheme:
a kind of contactless electronic loudspeaker is done reverse-connection preventing circuit with metal-oxide-semiconductor, its composition comprises: main control circuit, described main control circuit one end and anti-reverse loop, heavily loaded loop, the described governor circuit other end and underloading loop, described anti-reverse loop are connected, described heavily loaded loop, described underloading loop are all connected automobile power source with described anti-reverse loop, described underloading loop is connected with coil, and described coil is connected with oscillator.
described contactless electronic loudspeaker is done reverse-connection preventing circuit with metal-oxide-semiconductor, and described anti-reverse loop comprises metal-oxide-semiconductor, and described metal-oxide-semiconductor T1 one end is connected with resistance R, and described resistance R is connected with automobile power source.
a kind of contactless electronic loudspeaker is made the anti-reverse method of reverse-connection preventing circuit of metal-oxide-semiconductor; protection is connected in series with field effect transistor and protected circuit; its grid is connected respectively automobile electric source and the VSS of protected circuit by resistance R and source electrode; its drain electrode connects ground; once the error-polarity connection of power supply of protected circuit; protection can form and open circuit by field effect transistor, protection integrated circuit.
beneficial effect:
1. the present invention is connected in series protection with field effect transistor and protected circuit, damages the serious consequence of loudspeaker while preventing electronic horn error-polarity connection of power supply, has improved the reliability of loudspeaker work, and the protection design of simplified control circuit, reduces manufacturing cost.
2. the present invention has utilized the switching characteristic of metal-oxide-semiconductor, and the conducting of control circuit and disconnection design reverse connection prevention protection circuit, because the internal resistance of power MOS pipe is very little, has solved pressure drop and the excessive problem of power consumption that the anti-reverse scheme of existing employing diode power source exists.
accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present invention.
embodiment:
embodiment 1:
a kind of contactless electronic loudspeaker is done reverse-connection preventing circuit with metal-oxide-semiconductor, its composition comprises: main control circuit 1, described main control circuit one end and anti-reverse loop 2, heavily loaded loop 3, the described governor circuit other end and underloading loop 4, described anti-reverse loop are connected, described heavily loaded loop, described underloading loop are all connected automobile power source with described anti-reverse loop, described underloading loop is connected with coil 5, and described coil is connected with oscillator 6.
embodiment 2:
according to the contactless electronic loudspeaker described in embodiment 1, with metal-oxide-semiconductor, do reverse-connection preventing circuit, described anti-reverse loop comprises metal-oxide-semiconductor 7, described metal-oxide-semiconductor T1 one end and resistance R, piece number: 8 connect, and described resistance R is connected with described automobile power source 9.
embodiment 3:
above-mentioned contactless electronic loudspeaker is made the anti-reverse method of reverse-connection preventing circuit of metal-oxide-semiconductor; protection is connected in series with field effect transistor and protected circuit; its grid is connected respectively automobile electric source and the VSS of protected circuit by resistance R and source electrode; its drain electrode connects ground; once the error-polarity connection of power supply of protected circuit; protection can form and open circuit by field effect transistor, protection integrated circuit.
Claims (3)
1. a contactless electronic loudspeaker is done reverse-connection preventing circuit with metal-oxide-semiconductor, its composition comprises: main control circuit, it is characterized in that: described main control circuit one end and anti-reverse loop, heavily loaded loop, the described governor circuit other end and underloading loop, described anti-reverse loop are connected, described heavily loaded loop, described underloading loop are all connected automobile power source with described anti-reverse loop, described underloading loop is connected with coil, and described coil is connected with oscillator.
2. contactless electronic loudspeaker according to claim 1 is done reverse-connection preventing circuit with metal-oxide-semiconductor, it is characterized in that: described anti-reverse loop comprises metal-oxide-semiconductor, and described metal-oxide-semiconductor T1 one end is connected with resistance R, and described resistance R is connected with automobile power source.
3. according to the contactless electronic loudspeaker described in claim 1 and 2, of metal-oxide-semiconductor, make the anti-reverse method of reverse-connection preventing circuit for one kind; it is characterized in that: protection is connected in series with field effect transistor and protected circuit; its grid is connected respectively automobile electric source and the VSS of protected circuit by resistance R and source electrode; its drain electrode connects ground; once the error-polarity connection of power supply of protected circuit; protection can form and open circuit by field effect transistor, protection integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310709421.7A CN103648070A (en) | 2013-12-21 | 2013-12-21 | Contactless electronic horn MOS (Metal Oxide Semiconductor) tube-made anti-reverse-connection circuit and anti-reverse-connection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310709421.7A CN103648070A (en) | 2013-12-21 | 2013-12-21 | Contactless electronic horn MOS (Metal Oxide Semiconductor) tube-made anti-reverse-connection circuit and anti-reverse-connection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103648070A true CN103648070A (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310709421.7A Pending CN103648070A (en) | 2013-12-21 | 2013-12-21 | Contactless electronic horn MOS (Metal Oxide Semiconductor) tube-made anti-reverse-connection circuit and anti-reverse-connection method thereof |
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| CN (1) | CN103648070A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11113169A (en) * | 1997-10-06 | 1999-04-23 | Toyota Autom Loom Works Ltd | Protection device for semiconductor circuit |
| CN2836301Y (en) * | 2005-08-28 | 2006-11-08 | 华为技术有限公司 | Reverse connection prevention circuit for power supply |
| CN102413404A (en) * | 2011-12-05 | 2012-04-11 | 哈尔滨固泰电子有限责任公司 | Contactless power-isolated supply circuit of electronic horn and isolation power supply method thereof |
| CN202841629U (en) * | 2012-09-28 | 2013-03-27 | 莫晓辉 | Solar energy boost LED driving power supply with protection function |
| CN203618116U (en) * | 2013-12-21 | 2014-05-28 | 哈尔滨固泰电子有限责任公司 | A contactless-electronic-horn-used reversal-connection-preventing circuit made of MOS pipes |
-
2013
- 2013-12-21 CN CN201310709421.7A patent/CN103648070A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11113169A (en) * | 1997-10-06 | 1999-04-23 | Toyota Autom Loom Works Ltd | Protection device for semiconductor circuit |
| CN2836301Y (en) * | 2005-08-28 | 2006-11-08 | 华为技术有限公司 | Reverse connection prevention circuit for power supply |
| CN102413404A (en) * | 2011-12-05 | 2012-04-11 | 哈尔滨固泰电子有限责任公司 | Contactless power-isolated supply circuit of electronic horn and isolation power supply method thereof |
| CN202841629U (en) * | 2012-09-28 | 2013-03-27 | 莫晓辉 | Solar energy boost LED driving power supply with protection function |
| CN203618116U (en) * | 2013-12-21 | 2014-05-28 | 哈尔滨固泰电子有限责任公司 | A contactless-electronic-horn-used reversal-connection-preventing circuit made of MOS pipes |
Non-Patent Citations (1)
| Title |
|---|
| ZHENWENXIAN: "防反接保护电路", 《博客 ZHENWENXIAN的专栏》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20140319 |