摩托车报警器电路图
[技术资料 报警控制电路] 摩托车报警器电路图==www.ic37.com
报警控制电路 > 摩托车报警器电路图 摩托车报警器电路图 类别:报警控制电路 本电路图所用到的元器件: BC547 BC557 Any number of normally open switches may be used. Fit the mercury switches so that they close when the ...
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摩托车报警器电路图
[日期:
2005126
]
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anynumberofnormallyopenswitchesmaybeused.fitthemercuryswitchessothattheyclosewhenthesteeringismovedorwhenthebikeisliftedoffitssidestandorpushedforwardoffitscentrestand.usemicroswitchestoprotectremovablepanelsandthelidsofpanniersetc.whileatleastoneswitchremainsclosed,thesirenwillsound.abouttwominutesaftertheswitcheshavebeenopenedagain,thealarmwillreset.howlongittakestoswitchoffdependsonthecharacteristicsoftheactualcomponentsused.but,uptoapoint,youcanadjustthetimetosuityourrequirementsbychangingthevalueofc1.
thecircuitboardandswitchesmustbeprotectedfromtheelements.dampnessorcondensationwillcausemalfunction.withoutitsterminalblocks,theboardissmall.ideally,youshouldtrytofindasirenwithenoughsparespaceinsidetoaccommodateit.fita1ampinlinefuseclosetothepowersource.thisprotectsthewiring.insteadofusingakeyswitchyoucanuseahiddenswitch;oryoucouldusethenormallyclosedcontactsofasmallrelay.wiretherelaycoilsothatitisenergizedwhiletheignitionison.theneverytimeyouturntheignitionoff,thealarmwillsetitself.
whenitsnotsounding,thecircuitusesvirtuallynocurrent.thisshouldmakeitusefulinothercircumstances.forexample,poweredbydrybatteriesandwiththerelayandsirenvoltagestosuit,itcouldbefittedinsideacomputeroranythingelsethatsindangerofbeingpickedupandcarriedaway.thelowstandbycurrentandautomaticresetmeansthatforthissortofapplicationanexternalon/offswitchmaynotbenecessary.
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菁菁木华
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