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为(Wei)你(Ni)找(Zhao)到(Dao)相(Xiang)关(Guan)结(Jie)果(Guo)164个(Ge)

了(Liao)解(Jie)7805 IC电(Dian)压(Ya)调(Diao)节(Jie)器(Qi)

在(Zai)本(Ben)教(Jiao)程(Cheng)中(Zhong)，(?)我(Wo)们(Men)将(Jiang)了(Liao)解(Jie)最(Zui)常(Chang)用(Yong)的(De)稳(Wen)压(Ya)集(Ji)成(Cheng)电(Dian)路(Lu)之(Zhi)一(Yi)--7805 稳(Wen)压(Ya)集(Ji)成(Cheng)电(Dian)路(Lu)。(?)稳(Wen)压(Ya)电(Dian)源(Yuan)对(Dui)于(Yu)一(Yi)些(Xie)电(Dian)子(Zi)设(She)备(Bei)来(Lai)说(Shuo)非(Fei)常(Chang)重(Zhong)要(Yao)，(?)因(Yin)为(Wei)这(Zhe)些(Xie)设(She)备(Bei)采(Cai)用(Yong)的(De)半(Ban)导(Dao)体(Ti)材(Cai)料(Liao)具(Ju)有(You)固(Gu)定(Ding)的(De)电(Dian)流(Liu)和(He)电(Dian)压(Ya)率(Lu)。(?)如(Ru)果(Guo)偏(Pian)离(Li)固(Gu)定(Ding)速(Su)率(Lu)，(?)设(She)备(Bei)可(Ke)能(Neng)会(Hui)损(Sun)坏(Huai)。(?)

2023-08-06
如(Ru)何(He)制(Zhi)作(Zuo)稳(Wen)压(Ya)电(Dian)源(Yuan)

调(Diao)试(Shi)完(Wan)后(Hou)，(?)该(Gai)电(Dian)源(Yuan)可(Ke)以(Yi)输(Shu)出(Chu)DC11.80V，(?)DC-12.11V，(?)Dc+5.02三(San)路(Lu)直(Zhi)流(Liu)电(Dian)压(Ya)源(Yuan)。(?)输(Shu)出(Chu)总(Zong)功(Gong)率(Lu)10W，(?)遗(Yi)憾(Han)的(De)是(Shi)没(Mei)有(You)接(Jie)入(Ru)保(Bao)险(Xian)丝(Si)，(?)别(Bie)在(Zai)使(Shi)用(Yong)中(Zhong)电(Dian)源(Yuan)给(Gei)烧(Shao)了(Liao)。(?)利(Li)用(Yong)它(Ta)重(Zhong)新(Xin)调(Diao)试(Shi)运(Yun)放(Fang)结(Jie)果(Guo)很(Hen)好(Hao)。(?)

2023-06-14
LED驱(Qu)动(Dong)器(Qi)中(Zhong)I2C的(De)LED控(Kong)制(Zhi)方(Fang)式(Shi)

在(Zai)电(Dian)源(Yuan)设(She)计(Ji)上(Shang)我(Wo)们(Men)用(Yong)得(De)多(Duo)的(De)场(Chang)合(He)是(Shi)，(?)从(Cong)一(Yi)个(Ge)稳(Wen)定(Ding)的(De)“(?)高(Gao)”(?)电(Dian)压(Ya)得(De)到(Dao)一(Yi)个(Ge)稳(Wen)定(Ding)的(De)“(?)低(Di)”(?)电(Dian)压(Ya)。(?)这(Zhe)也(Ye)就(Jiu)是(Shi)经(Jing)常(Chang)说(Shuo)的(De)DC/DC，(?)其(Qi)中(Zhong)用(Yong)得(De)多(Duo)的(De)电(Dian)源(Yuan)稳(Wen)压(Ya)芯(Xin)片(Pian)有(You)两(Liang)种(Zhong)，(?)一(Yi)种(Zhong)叫(Jiao)LDO(低(Di)压(Ya)差(Cha)线(Xian)性(Xing)稳(Wen)压(Ya)器(Qi)，(?)我(Wo)们(Men)后(Hou)面(Mian)说(Shuo)的(De)线(Xian)性(Xing)稳(Wen)压(Ya)电(Dian)源(Yuan)，(?)也(Ye)是(Shi)指(Zhi)它(Ta))，(?)另(Ling)一(Yi)种(Zhong)叫(Jiao)PWM（(?)脉(Mai)宽(Kuan)调(Diao)制(Zhi)开(Kai)关(Guan)电(Dian)源(Yuan)，(?)我(Wo)们(Men)在(Zai)本(Ben)文(Wen)也(Ye)称(Cheng)它(Ta)开(Kai)关(Guan)电(Dian)源(Yuan)）(?)。(?)我(Wo)们(Men)常(Chang)常(Chang)听(Ting)到(Dao)PWM的(De)效(Xiao)率(Lu)高(Gao)，(?)但(Dan)是(Shi)LDO的(De)响(Xiang)应(Ying)快(Kuai)，(?)这(Zhe)是(Shi)为(Wei)什(Shi)么(Me)呢(Ne)？(?)别(Bie)着(Zhuo)急(Ji)，(?)先(Xian)让(Rang)我(Wo)们(Men)看(Kan)看(Kan)它(Ta)们(Men)的(De)原(Yuan)理(Li)。(?)

2023-06-08
直(Zhi)流(Liu)稳(Wen)压(Ya)电(Dian)源(Yuan)的(De)整(Zheng)流(Liu)电(Dian)路(Lu)详(Xiang)解(Jie)

电(Dian)子(Zi)电(Dian)路(Lu)工(Gong)作(Zuo)时(Shi)都(Du)需(Xu)要(Yao)直(Zhi)流(Liu)电(Dian)源(Yuan)提(Ti)供(Gong)能(Neng)量(Liang)，(?)电(Dian)池(Chi)因(Yin)使(Shi)用(Yong)费(Fei)用(Yong)高(Gao)，(?)一(Yi)般(Ban)只(Zhi)用(Yong)于(Yu)低(Di)功(Gong)耗(Hao)便(Bian)携(Xie)式(Shi)的(De)仪(Yi)器(Qi)设(She)备(Bei)中(Zhong)。(?)这(Zhe)里(Li)讨(Tao)论(Lun)如(Ru)何(He)把(Ba)交(Jiao)流(Liu)电(Dian)源(Yuan)变(Bian)换(Huan)为(Wei)直(Zhi)流(Liu)稳(Wen)压(Ya)电(Dian)源(Yuan)。(?)一(Yi)般(Ban)直(Zhi)流(Liu)电(Dian)源(Yuan)由(You)如(Ru)下(Xia)部(Bu)分(Fen)组(Zu)成(Cheng)：(?)整(Zheng)流(Liu)电(Dian)路(Lu)是(Shi)将(Jiang)工(Gong)频(Pin)交(Jiao)流(Liu)电(Dian)转(Zhuan)换(Huan)为(Wei)脉(Mai)动(Dong)直(Zhi)流(Liu)电(Dian)。(?)滤(Lu)波(Bo)电(Dian)路(Lu)将(Jiang)脉(Mai)动(Dong)直(Zhi)流(Liu)中(Zhong)的(De)交(Jiao)流(Liu)成(Cheng)分(Fen)滤(Lu)除(Chu)，(?)减(Jian)少(Shao)交(Jiao)流(Liu)成(Cheng)分(Fen)，(?)增(Zeng)加(Jia)直(Zhi)流(Liu)成(Cheng)分(Fen)。(?)稳(Wen)压(Ya)电(Dian)路(Lu)采(Cai)用(Yong)负(Fu)反(Fan)馈(Kui)技(Ji)术(Shu)，(?)对(Dui)整(Zheng)流(Liu)后(Hou)的(De)直(Zhi)流(Liu)电(Dian)压(Ya)进(Jin)一(Yi)步(Bu)进(Jin)行(Xing)稳(Wen)定(Ding)。(?)

2023-01-30
最(Zui)大(Da)限(Xian)度(Du)减(Jian)少(Shao)功(Gong)率(Lu)电(Dian)感(Gan)的(De) EMC 干(Gan)扰(Rao)

通(Tong)常(Chang)，(?)开(Kai)关(Guan)型(Xing)稳(Wen)压(Ya)电(Dian)源(Yuan)没(Mei)有(You)功(Gong)率(Lu)电(Dian)感(Gan)就(Jiu)不(Bu)能(Neng)工(Gong)作(Zuo)。(?)但(Dan)是(Shi)，(?)如(Ru)果(Guo)您(Nin)想(Xiang)改(Gai)善(Shan)它(Ta)们(Men)对(Dui)EMC的(De)性(Xing)能(Neng)，(?)可(Ke)以(Yi)从(Cong)几(Ji)个(Ge)方(Fang)面(Mian)入(Ru)手(Shou)，(?)包(Bao)括(Kuo)屏(Ping)蔽(Bi)效(Xiao)率(Lu)、(?)绕(Rao)组(Zu)起(Qi)绕(Rao)点(Dian)和(He)开(Kai)关(Guan)转(Zhuan)换(Huan)。(?)

2022-11-15
微(Wei)源(Yuan)半(Ban)导(Dao)体(Ti)LDO选(Xuan)型(Xing)攻(Gong)略(Lue)

LDO(Low Dropout Regulator)是(Shi)应(Ying)用(Yong)较(Jiao)为(Wei)广(Guang)泛(Fan)的(De)一(Yi)种(Zhong)小(Xiao)功(Gong)率(Lu)降(Jiang)压(Ya)稳(Wen)压(Ya)电(Dian)源(Yuan)芯(Xin)片(Pian)，(?)具(Ju)有(You)输(Shu)出(Chu)电(Dian)压(Ya)对(Dui)输(Shu)入(Ru)电(Dian)压(Ya)或(Huo)负(Fu)载(Zai)变(Bian)化(Hua)反(Fan)应(Ying)迅(Xun)速(Su)，(?)输(Shu)出(Chu)电(Dian)压(Ya)纹(Wen)波(Bo)和(He)噪(Zao)声(Sheng)较(Jiao)低(Di)，(?)外(Wai)围(Wei)电(Dian)路(Lu)简(Jian)单(Dan)，(?)体(Ti)积(Ji)小(Xiao)，(?)价(Jia)格(Ge)低(Di)等(Deng)优(You)点(Dian)。(?)

2022-04-02
一(Yi)个(Ge)正(Zheng)负(Fu)5v稳(Wen)压(Ya)电(Dian)源(Yuan)的(De)简(Jian)单(Dan)制(Zhi)作(Zuo)

在(Zai)正(Zheng)常(Chang)情(Qing)况(Kuang)下(Xia)我(Wo)们(Men)很(Hen)难(Nan)找(Zhao)到(Dao)一(Yi)个(Ge)标(Biao)准(Zhun)的(De)正(Zheng)负(Fu)电(Dian)源(Yuan)，(?)就(Jiu)连(Lian)我(Wo)们(Men)使(Shi)用(Yong)的(De)电(Dian)池(Chi)电(Dian)压(Ya)都(Du)是(Shi)正(Zheng)的(De)，(?)如(Ru)果(Guo)找(Zhao)到(Dao)一(Yi)个(Ge)负(Fu)电(Dian)源(Yuan)那(Na)真(Zhen)是(Shi)很(Hen)难(Nan)，(?)而(?)我(Wo)们(Men)又(You)会(Hui)经(Jing)常(Chang)会(Hui)用(Yong)到(Dao)正(Zheng)负(Fu)电(Dian)源(Yuan)，(?)这(Zhe)时(Shi)候(Hou)我(Wo)们(Men)就(Jiu)得(De)想(Xiang)办(Ban)法(Fa)得(De)到(Dao)一(Yi)个(Ge)正(Zheng)负(Fu)电(Dian)源(Yuan)了(Liao)，(?)今(Jin)天(Tian)就(Jiu)教(Jiao)给(Gei)大(Da)家(Jia)一(Yi)个(Ge)非(Fei)常(Chang)简(Jian)单(Dan)的(De)方(Fang)法(Fa)，(?)让(Rang)你(Ni)轻(Qing)轻(Qing)松(Song)松(Song)制(Zhi)作(Zuo)一(Yi)个(Ge)正(Zheng)负(Fu)5v的(De)稳(Wen)压(Ya)电(Dian)源(Yuan)。(?)

2022-02-16
开(Kai)关(Guan)电(Dian)源(Yuan)(DC-DC)与(Yu)LDO电(Dian)源(Yuan)的(De)区(Qu)别(Bie)---原(Yuan)理(Li)

从(Cong)开(Kai)关(Guan)电(Dian)源(Yuan)和(He)LDO电(Dian)源(Yuan)的(De)一(Yi)些(Xie)原(Yuan)理(Li)上(Shang)谈(Tan)谈(Tan)，(?)对(Dui)比(Bi)指(Zhi)标(Biao)上(Shang)的(De)区(Qu)别(Bie)，(?)目(Mu)的(De)是(Shi)分(Fen)析(Xi)它(Ta)们(Men)之(Zhi)间(Jian)的(De)优(You)缺(Que)点(Dian)，(?)从(Cong)而(?)找(Zhao)到(Dao)如(Ru)何(He)在(Zai)PCB设(She)计(Ji)上(Shang)更(Geng)好(Hao)的(De)进(Jin)行(Xing)选(Xuan)择(Ze)使(Shi)用(Yong)。(?)本(Ben)来(Lai)是(Shi)想(Xiang)从(Cong)直(Zhi)流(Liu)电(Dian)源(Yuan)的(De)种(Zhong)类(Lei)的(De)选(Xuan)择(Ze)进(Jin)行(Xing)切(Qie)入(Ru)，(?)但(Dan)是(Shi)查(Cha)阅(Yue)了(Liao)不(Bu)少(Shao)资(Zi)料(Liao)，(?)发(Fa)现(Xian)对(Dui)直(Zhi)流(Liu)电(Dian)源(Yuan)的(De)分(Fen)类(Lei)不(Bu)太(Tai)明(Ming)确(Que)，(?)按(An)类(Lei)型(Xing)分(Fen)，(?)按(An)电(Dian)路(Lu)结(Jie)构(Gou)分(Fen)，(?)按(An)拓(Tuo)扑(Pu)分(Fen)都(Du)不(Bu)太(Tai)一(Yi)样(Yang)。(?)有(You)的(De)把(Ba)它(Ta)分(Fen)为(Wei)线(Xian)性(Xing)型(Xing)，(?)开(Kai)关(Guan)型(Xing)，(?)可(Ke)控(Kong)硅(Gui)整(Zheng)流(Liu)型(Xing)和(He)感(Gan)应(Ying)型(Xing)；(?)有(You)的(De)又(You)把(Ba)它(Ta)分(Fen)为(Wei)化(Hua)学(Xue)电(Dian)源(Yuan)，(?)线(Xian)性(Xing)稳(Wen)压(Ya)电(Dian)源(Yuan)和(He)开(Kai)关(Guan)型(Xing)稳(Wen)压(Ya)电(Dian)源(Yuan)，(?)有(You)的(De)分(Fen)类(Lei)干(Gan)脆(Cui)就(Jiu)分(Fen)两(Liang)种(Zhong)，(?)线(Xian)性(Xing)型(Xing)和(He)开(Kai)关(Guan)型(Xing)。(?)

2021-06-11
稳(Wen)压(Ya)二(?)极(Ji)管(Guan)的(De)选(Xuan)用(Yong)和(He)使(Shi)用(Yong)条(Tiao)件(Jian)

稳(Wen)压(Ya)二(?)极(Ji)管(Guan)是(Shi)工(Gong)作(Zuo)在(Zai)反(Fan)向(Xiang)击(Ji)穿(Chuan)状(Zhuang)态(Tai)下(Xia)的(De)，(?)使(Shi)管(Guan)子(Zi)两(Liang)端(Duan)电(Dian)压(Ya)基(Ji)本(Ben)不(Bu)变(Bian)的(De)一(Yi)种(Zhong)特(Te)殊(Shu)二(?)极(Ji)管(Guan)。(?)选(Xuan)用(Yong)稳(Wen)压(Ya)管(Guan)时(Shi)，(?)要(Yao)根(Gen)据(Ju)具(Ju)体(Ti)电(Dian)子(Zi)电(Dian)路(Lu)来(Lai)考(Kao)虑(Lu)，(?)简(Jian)单(Dan)的(De)并(Bing)联(Lian)稳(Wen)压(Ya)电(Dian)源(Yuan)，(?)输(Shu)出(Chu)电(Dian)压(Ya)就(Jiu)是(Shi)稳(Wen)压(Ya)管(Guan)的(De)稳(Wen)定(Ding)电(Dian)压(Ya)。(?)晶(Jing)体(Ti)管(Guan)收(Shou)音(Yin)机(Ji)的(De)稳(Wen)压(Ya)电(Dian)源(Yuan)可(Ke)选(Xuan)用(Yong)2CW54型(Xing)的(De)稳(Wen)压(Ya)管(Guan)，(?)其(Qi)稳(Wen)定(Ding)电(Dian)压(Ya)达(Da)6.5V即(Ji)可(Ke)。(?)

2020-12-07
如(Ru)何(He)设(She)计(Ji)一(Yi)个(Ge)可(Ke)调(Diao)稳(Wen)压(Ya)电(Dian)源(Yuan)电(Dian)路(Lu)？(?)

通(Tong)常(Chang)我(Wo)们(Men)该(Gai)如(Ru)何(He)设(She)计(Ji)一(Yi)个(Ge)可(Ke)调(Diao)稳(Wen)压(Ya)电(Dian)源(Yuan)电(Dian)路(Lu)?调(Diao)直(Zhi)流(Liu)稳(Wen)压(Ya)电(Dian)源(Yuan)是(Shi)采(Cai)用(Yong)当(Dang)前(Qian)国(Guo)际(Ji)先(Xian)进(Jin)的(De)高(Gao)频(Pin)调(Diao)制(Zhi)技(Ji)术(Shu)，(?)其(Qi)工(Gong)作(Zuo)原(Yuan)理(Li)是(Shi)将(Jiang)开(Kai)关(Guan)电(Dian)源(Yuan)的(De)电(Dian)压(Ya)和(He)电(Dian)流(Liu)展(Zhan)宽(Kuan)，(?)实(Shi)现(Xian)了(Liao)电(Dian)压(Ya)和(He)电(Dian)流(Liu)的(De)大(Da)范(Fan)围(Wei)调(Diao)节(Jie)，(?)同(Tong)时(Shi)扩(Kuo)大(Da)了(Liao)目(Mu)前(Qian)直(Zhi)流(Liu)电(Dian)源(Yuan)供(Gong)应(Ying)器(Qi)的(De)应(Ying)用(Yong)。(?)本(Ben)文(Wen)将(Jiang)介(Jie)绍(Shao)一(Yi)些(Xie)可(Ke)调(Diao)稳(Wen)压(Ya)电(Dian)源(Yuan)电(Dian)路(Lu)。(?)

2020-09-23
线(Xian)性(Xing)稳(Wen)压(Ya)电(Dian)源(Yuan)的(De)工(Gong)作(Zuo)原(Yuan)理(Li)是(Shi)怎(Zen)么(Me)样(Yang)的(De)

如(Ru)下(Xia)图(Tu)所(Suo)示(Shi)，(?)可(Ke)变(Bian)电(Dian)阻(Zu)RW跟(Gen)负(Fu)载(Zai)电(Dian)阻(Zu)RL组(Zu)成(Cheng)一(Yi)个(Ge)分(Fen)压(Ya)电(Dian)路(Lu)，(?)输(Shu)出(Chu)电(Dian)压(Ya)为(Wei)：(?)Uo=Ui×(?)RL/（(?)RW+RL）(?)，(?)因(Yin)此(Ci)通(Tong)过(Guo)调(Diao)节(Jie)RW的(De)大(Da)小(Xiao)，(?)即(Ji)可(Ke)改(Gai)变(Bian)输(Shu)出(Chu)电(Dian)压(Ya)的(De)大(Da)小(Xiao)。(?)请(Qing)注(Zhu)意(Yi)，(?)在(Zai)这(Zhe)个(Ge)式(Shi)子(Zi)里(Li)，(?)如(Ru)果(Guo)我(Wo)们(Men)只(Zhi)看(Kan)可(Ke)调(Diao)电(Dian)阻(Zu)RW的(De)值(Zhi)变(Bian)化(Hua)，(?)Uo的(De)输(Shu)出(Chu)并(Bing)不(Bu)是(Shi)线(Xian)性(Xing)的(De)，(?)但(Dan)如(Ru)果(Guo)把(Ba)RW和(He)RL一(Yi)起(Qi)看(Kan)，(?)则(Ze)是(Shi)线(Xian)性(Xing)的(De)。(?)

2020-01-06
这(Zhe)8种(Zhong)开(Kai)关(Guan)电(Dian)源(Yuan)工(Gong)作(Zuo)原(Yuan)理(Li)及(Ji)电(Dian)路(Lu)图(Tu)，(?)你(Ni)都(Du)知(Zhi)道(Dao)吗(Ma)？(?)

随(Sui)着(Zhuo)全(Quan)球(Qiu)对(Dui)能(Neng)源(Yuan)问(Wen)题(Ti)的(De)重(Zhong)视(Shi)，(?)电(Dian)子(Zi)产(Chan)品(Pin)的(De)耗(Hao)能(Neng)问(Wen)题(Ti)将(Jiang)愈(Yu)来(Lai)愈(Yu)突(Tu)出(Chu)，(?)如(Ru)何(He)降(Jiang)低(Di)其(Qi)待(Dai)机(Ji)功(Gong)耗(Hao)，(?)提(Ti)高(Gao)供(Gong)电(Dian)效(Xiao)率(Lu)成(Cheng)为(Wei)一(Yi)个(Ge)急(Ji)待(Dai)解(Jie)决(Jue)的(De)问(Wen)题(Ti)。(?)传(Chuan)统(Tong)的(De)线(Xian)性(Xing)稳(Wen)压(Ya)电(Dian)源(Yuan)虽(Sui)然(Ran)电(Dian)路(Lu)结(Jie)构(Gou)简(Jian)单(Dan)、(?)工(Gong)作(Zuo)可(Ke)靠(Kao)，(?)但(Dan)它(Ta)存(Cun)在(Zai)着(Zhuo)效(Xiao)率(Lu)低(Di)（(?)只(Zhi)有(You)40%－(?)50%）(?)、(?)体(Ti)积(Ji)大(Da)、(?)铜(Tong)铁(Tie)消(Xiao)耗(Hao)量(Liang)大(Da)，(?)工(Gong)作(Zuo)温(Wen)度(Du)高(Gao)及(Ji)调(Diao)整(Zheng)范(Fan)围(Wei)小(Xiao)等(Deng)缺(Que)点(Dian)。(?)

2019-12-11

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