LED节能灯电路图

光控LED节能灯电路

如下(xia)图所示为一(yi)款光(guang)(guang)控(kong)LED节能灯的(de)电(dian)(dian)(dian)(dian)路，220V交流电(dian)(dian)(dian)(dian)经(jing)过C3降压(ya)、R3泄(xie)(xie)流，VD1、VD整流，C2、C1滤(lv)波(bo)得(de)到(dao)平(ping)滑(hua)的(de)直(zhi)流电(dian)(dian)(dian)(dian)，稳(wen)(wen)压(ya)二极(ji)管VS1把电(dian)(dian)(dian)(dian)压(ya)稳(wen)(wen)定在(zai)6V，给集成电(dian)(dian)(dian)(dian)路MCI455供电(dian)(dian)(dian)(dian)，并经(jing)Rl、R2给光(guang)(guang)敏(min)电(dian)(dian)(dian)(dian)阻RG供电(dian)(dian)(dian)(dian)。白天(tian)，光(guang)(guang)敏(min)电(dian)(dian)(dian)(dian)阻RG在(zai)光(guang)(guang)照下(xia)阻值(zhi)很(hen)小，MCI455的(de)2脚(jiao)(jiao)和6脚(jiao)(jiao)输(shu)入高电(dian)(dian)(dian)(dian)平(ping)，3脚(jiao)(jiao)输(shu)出(chu)低(di)电(dian)(dian)(dian)(dian)平(ping)，继(ji)电(dian)(dian)(dian)(dian)器K不(bu)吸(xi)合，K1触(chu)点不(bu)接(jie)通，220V电(dian)(dian)(dian)(dian)压(ya)没有(you)加到(dao)电(dian)(dian)(dian)(dian)容(rong)C5上，所以LED灯不(bu)亮。晚上，光(guang)(guang)敏(min)电(dian)(dian)(dian)(dian)阻RG无光(guang)(guang)照电(dian)(dian)(dian)(dian)阻值(zhi)很(hen)大，MCI455的(de)2脚(jiao)(jiao)和6脚(jiao)(jiao)为低(di)电(dian)(dian)(dian)(dian)平(ping)，3脚(jiao)(jiao)输(shu)出(chu)高电(dian)(dian)(dian)(dian)平(ping)，继(ji)电(dian)(dian)(dian)(dian)器K吸(xi)合，K1触(chu)点接(jie)通，C5得(de)到(dao)电(dian)(dian)(dian)(dian)压(ya)后降压(ya)，R4泄(xie)(xie)流确保安全，VD4、VD5整流，C6滤(lv)波(bo)，VS2将(jiang)直(zhi)流电(dian)(dian)(dian)(dian)压(ya)稳(wen)(wen)定在(zai)15V左右(you)，将(jiang)8只(zhi)白光(guang)(guang)LED点亮。电(dian)(dian)(dian)(dian)容(rong)C4起滤(lv)波(bo)作用(yong)，防止干扰家用(yong)电(dian)(dian)(dian)(dian)器，R5是C6的(de)放电(dian)(dian)(dian)(dian)电(dian)(dian)(dian)(dian)阻。

光控LED节能灯电路

电路的光敏电阻可(ke)使LED灯在白天自动熄灭，夜(ye)间自动点亮(liang)，并且电路具有功(gong)耗小、节能的特点。

大功率LED平板灯电路图解

如下图所示的(de)是一款大功(gong)率(lv)LED平板灯的(de)电(dian)路图，该灯使用220V电(dian)源(yuan)供电(dian)。220V交流(liu)电(dian)经过C1降(jiang)压(ya)电(dian)容(rong)降(jiang)压(ya)后(hou)，经过全(quan)桥整流(liu)，再通过C2滤波后(hou)，经限流(liu)电(dian)阻R4给串(chuan)联的(de)100个(ge)LED灯提供恒流(liu)电(dian)源(yuan)。R5~R12的(de)作用与R4相同。

大功率LED平板灯电路图解

该(gai)电(dian)(dian)(dian)路由9组(zu)LED并联组(zu)成(cheng)，每一(yi)组(zu)100个LED串(chuan)联，其(qi)中R1时(shi)保护(hu)电(dian)(dian)(dian)阻，R2是限流电(dian)(dian)(dian)阻，R3是电(dian)(dian)(dian)容(rong)(rong)(rong)的泄放电(dian)(dian)(dian)阻，防(fang)止电(dian)(dian)(dian)压(ya)(ya)升高、温度升高、LED的电(dian)(dian)(dian)流增大。C2时(shi)滤波电(dian)(dian)(dian)容(rong)(rong)(rong)，同时(shi)用(yong)来防(fang)止开灯(deng)时(shi)的冲击(ji)电(dian)(dian)(dian)流对LED的损伤(shang)。C1采用(yong)耐压(ya)(ya)在400V以(yi)上的涤纶(lun)电(dian)(dian)(dian)容(rong)(rong)(rong)或CBB电(dian)(dian)(dian)容(rong)(rong)(rong)，C2采用(yong)耐压(ya)(ya)400V以(yi)上的电(dian)(dian)(dian)解电(dian)(dian)(dian)容(rong)(rong)(rong)。

最简单实用的LED灯照明电路

如下图所示为一(yi)款使用电动(dong)车(che)48V电瓶供电的(de)LED照明灯(deng)电路(lu)，由三个LED串联(lian)(lian)一(yi)个3.9k的(de)限流(liu)电阻为一(yi)组，三组并联(lian)(lian)组成。可当做电动(dong)车(che)刹(cha)车(che)尾(wei)灯(deng)，电路(lu)简单实用。

最简单LED照明电路

LED灯(deng)杯电(dian)(dian)(dian)(dian)(dian)(dian)(dian)路：如下图(tu)所示，该灯(deng)使用(yong)220V电(dian)(dian)(dian)(dian)(dian)(dian)(dian)源供电(dian)(dian)(dian)(dian)(dian)(dian)(dian)，220V交流(liu)(liu)(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)经(jing)(jing)过(guo)C1降压电(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)降压后(hou)，再(zai)经(jing)(jing)过(guo)全桥整流(liu)(liu)(liu)(liu)，通过(guo)C2滤波，最后(hou)经(jing)(jing)过(guo)限流(liu)(liu)(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)R3给串联的(de)(de)40个LED提供恒流(liu)(liu)(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)源。LED的(de)(de)额定电(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)为20mA，R1是(shi)保(bao)护(hu)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，R2是(shi)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)C1的(de)(de)释放电(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，R3是(shi)限流(liu)(liu)(liu)(liu)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，以防止电(dian)(dian)(dian)(dian)(dian)(dian)(dian)压升高(gao)、温度升高(gao)、LED的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)增大，C2用(yong)来保(bao)护(hu)LED免受(shou)开灯(deng)时(shi)的(de)(de)冲(chong)击电(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)损害(hai)。

最实用LED照明电路

该电路使小(xiao)功(gong)率灯杯最实(shi)用的电路，可以方便地装在空间较小(xiao)的灯杯里，目前已(yi)广泛的应用，具有电源功(gong)率小(xiao)、体积小(xiao)、经济(ji)实(shi)用的优点

双管节能灯电路图解

如(ru)下图所示为一(yi)款双灯管节(jie)能(neng)灯电(dian)(dian)路，220V交(jiao)流(liu)电(dian)(dian)经过(guo)保险管电(dian)(dian)阻TR后加到整(zheng)流(liu)桥VD1~VD4整(zheng)流(liu)，由电(dian)(dian)容(rong)C1、C2和电(dian)(dian)感L1组成π型滤(lv)波(bo)电(dian)(dian)路，即可(ke)防(fang)止(zhi)节(jie)能(neng)灯工(gong)作时产生高次谐(xie)波(bo)对家用视(shi)听电(dian)(dian)器设备的干扰，又可(ke)以进(jin)一(yi)步(bu)减小(xiao)输(shu)出直(zhi)流(liu)电(dian)(dian)压(ya)的交(jiao)流(liu)纹波(bo)，以利于后级电(dian)(dian)路工(gong)作。

双管节能灯照明电路图解

经(jing)滤波后输出(chu)约300V直(zhi)流(liu)电(dian)(dian)(dian)压(ya)(ya)(ya)加到(dao)功(gong)率管(guan)VT1、VT2上，由VT1、VT2、C4、C5和(he)脉(mai)冲(chong)(chong)变压(ya)(ya)(ya)器T1 (绕组(zu)Wl、W2、W3)组(zu)成(cheng)高频(pin)振(zhen)荡电(dian)(dian)(dian)路，由自(zi)感(gan)变压(ya)(ya)(ya)器T2、C7 (T2’、C7′)和(he)灯(deng)(deng)(deng)管(guan)组(zu)成(cheng)串联(lian)谐振(zhen)及(ji)照明电(dian)(dian)(dian)路。 Rl、C3组(zu)成(cheng)起(qi)动电(dian)(dian)(dian)路，刚接(jie)通(tong)电(dian)(dian)(dian)源时，300V直(zhi)流(liu)电(dian)(dian)(dian)压(ya)(ya)(ya)经(jing)R1对C3充(chong)电(dian)(dian)(dian)，当C3充(chong)电(dian)(dian)(dian)电(dian)(dian)(dian)压(ya)(ya)(ya)过(guo)到(dao)一(yi)定(ding)值时经(jing)R3加到(dao)VT2的(de)(de)基极(ji)，VT2触发(fa)导通(tong)，然后通(tong)过(guo)脉(mai)冲(chong)(chong)变压(ya)(ya)(ya)器T1各绕组(zu)感(gan)应耦合(he)，触发(fa)VT1和(he)VT2轮流(liu)导通(tong)与截止(zhi)，电(dian)(dian)(dian)路进入振(zhen)荡状态(tai)，产生近(jin)似矩(ju)形波的(de)(de)输出(chu)脉(mai)冲(chong)(chong)。该脉(mai)冲(chong)(chong)电(dian)(dian)(dian)压(ya)(ya)(ya)经(jing)T2、C7(T2’、C7′)产生振(zhen)荡，在(zai)双(shuang)灯(deng)(deng)(deng)管(guan)两端获得足(zu)够(gou)的(de)(de)起(qi)辉(hui)电(dian)(dian)(dian)压(ya)(ya)(ya)而点燃发(fa)光。当灯(deng)(deng)(deng)管(guan)点亮后，由于T2和(he)TT的(de)(de)自(zi)感(gan)作(zuo)用(yong)，使灯(deng)(deng)(deng)管(guan)电(dian)(dian)(dian)流(liu)恒定(ding)，这样既减小灯(deng)(deng)(deng)管(guan)的(de)(de)频(pin)闪，又起(qi)到(dao)限(xian)流(liu)保(bao)护作(zuo)用(yong)，确保(bao)节(jie)能灯(deng)(deng)(deng)安全工作(zuo)。电(dian)(dian)(dian)阻R5、R6起(qi)限(xian)制(zhi)VT1、VT2基极(ji)过(guo)电(dian)(dian)(dian)流(liu)的(de)(de)作(zuo)用(yong)。电(dian)(dian)(dian)阻R2、R4和(he)二(er)极(ji)管(guan)VD5、VD6串联(lian)组(zu)成(cheng)VT1、VT2的(de)(de)B – E结反压(ya)(ya)(ya)保(bao)护电(dian)(dian)(dian)路。电(dian)(dian)(dian)容(rong)C6起(qi)隔(ge)直(zhi)作(zuo)用(yong)，防止(zhi)直(zhi)流(liu)高压(ya)(ya)(ya)进入灯(deng)(deng)(deng)管(guan)而烧坏灯(deng)(deng)(deng)丝。

由于该节能灯(deng)电(dian)路设置了(le)多重(zhong)保(bao)护，具(ju)有提高节能灯(deng)的可靠性，延长(zhang)灯(deng)管使用寿命的特点。

低压荧光节能灯照明电路

如下(xia)图所示是(shi)一款12V低压(ya)(ya)节能(neng)灯电(dian)路(lu)，电(dian)流约2A，灯管的(de)启(qi)动电(dian)压(ya)(ya)时经过12V电(dian)源接通后，由三极管VT1、VT2、C1和变压(ya)(ya)器T组成的(de)震荡(dang)电(dian)路(lu)产生(sheng)几十千赫兹高频交(jiao)流电(dian)，并经过升(sheng)压(ya)(ya)变压(ya)(ya)器T升(sheng)压(ya)(ya)后产生(sheng)的(de)。

低压荧光节能灯照明电路

此(ci)电(dian)(dian)路中(zhong)荧光灯(deng)的频率(lv)很高，并且震(zhen)荡晶(jing)体管VT1、VT2、变(bian)压(ya)器T都(dou)不发(fa)热，功率(lv)因(yin)数较高，特别(bie)适合(he)用于移动(dong)照明或长(zhang)时间应(ying)急照明。供电(dian)(dian)电(dian)(dian)源也可以是任何(he)一种(zhong)10~14V直流电(dian)(dian)源，如用汽车的12V电(dian)(dian)瓶(ping)供电(dian)(dian)等(deng)。

此电路具有简单实(shi)用(yong)(yong)，发光效(xiao)率高的特点，实(shi)用(yong)(yong)普通(tong)国产螺(luo)旋节能(neng)灯管(guan)即可。

电子节能灯和LED节能灯

新一代照明光源：电子节(jie)能灯(deng)和LED节(jie)能灯(deng)

随着(zhe)电(dian)(dian)子技(ji)术的发(fa)展(zhan)(zhan)，电(dian)(dian)子镇流(liu)器(qi)以(yi)及去(qu)油(you)节(jie)能、无频闪、无噪音、功率因数高(gao)(gao)、能延(yan)长灯(deng)管寿命等优点，而(er)逐步取代电(dian)(dian)感镇流(liu)器(qi)。以(yi)电(dian)(dian)子镇流(liu)器(qi)配合荧光灯(deng)管的高(gao)(gao)效节(jie)能灯(deng)，正走进(jin)全家(jia)万(wan)户。他不(bu)仅适(shi)用(yong)于各种(zhong)(zhong)普(pu)通照(zhao)明场(chang)(chang)合，如家(jia)庭室内(nei)、阳(yang)台、走到、楼梯通道等各种(zhong)(zhong)公共(gong)场(chang)(chang)所照(zhao)明，而(er)且适(shi)用(yong)于户外灯(deng)箱、广告牌、展(zhan)(zhan)示橱窗照(zhao)明灯(deng)。

LED光(guang)(guang)(guang)(guang)源相比节能(neng)荧(ying)光(guang)(guang)(guang)(guang)灯(deng)(deng)和白炽灯(deng)(deng)在性能(neng)上具有很大的(de)优势，它耗(hao)能(neng)少，使用寿(shou)命(ming)长(zhang)，安全环保(bao)，光(guang)(guang)(guang)(guang)源稳定(ding)性好，无频闪、保(bao)护眼睛、无噪(zao)音、启(qi)动(dong)快(kuai)、色(se)彩丰富灯(deng)(deng)优点。因此，LED灯(deng)(deng)还将逐步取代荧(ying)光(guang)(guang)(guang)(guang)灯(deng)(deng)、白炽灯(deng)(deng)成(cheng)(cheng)为(wei)下一代绿色(se)照(zhao)明光(guang)(guang)(guang)(guang)源。LED时(shi)英文Light Emitting Diode（发光(guang)(guang)(guang)(guang)二极管）的(de)缩(suo)写，是(shi)由半导(dao)体(ti)(ti)材料做成(cheng)(cheng)的(de)，当两(liang)端加正向电压时(shi)，电流从(cong)LED阳极流向阴(yin)极，半导(dao)体(ti)(ti)晶体(ti)(ti)就(jiu)发出从(cong)紫外到红外不同颜色(se)的(de)光(guang)(guang)(guang)(guang)线，光(guang)(guang)(guang)(guang)的(de)强弱与电流有关(guan)。采(cai)用发光(guang)(guang)(guang)(guang)二极管制(zhi)成(cheng)(cheng)的(de)LED灯(deng)(deng)有好多种(zhong)，有LED照(zhao)明灯(deng)(deng)、LED灯(deng)(deng)杯、LED平板灯(deng)(deng)等。

联系方式：邹先生

联系电话：0755-83888366-8022

手机：18123972950

QQ：2880195519

联系地址：深圳市福田区车(che)公庙天(tian)安数(shu)码城天(tian)吉(ji)大(da)厦CD座5C1

请搜微(wei)信公(gong)众号:“KIA半导体”或扫一扫下(xia)图“关注”官方微(wei)信公(gong)众号

请“关注”官方微信公众号:提供  MOS管  技术帮助(zhu)