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style="text-indent:2em;">˜q™æ˜¯æŒ‡åœ¨æ‰€æœ‰å…¶å®ƒåª„响量保持不变æ—Óž¼Œç”׃ºŽè´Ÿè²çš„变化ä‹É输出甉|µåœ¨é¢å®šå€¼I和零之间变化时所引è“v的输出电压的相对变化量.负蝲½E›_®šåº¦çš„½W¦å·ä¸ºsl由定义可知第二节½E›_Ž‹åŽŸç†æ˜¯ç”¨æ¥è¯´æ˜Žçº¿æ€§è°ƒæ•´åž‹æ™¶ä½“½Ž¡ç›´‹¹ç¨³åŽ‹ç”µæºå·¥ä½œåŽŸç†çš„一¿UåŸºæœ¬ç¨³åŽ‹ç”µè·¯ã€‚El是整‹¹æ×o波电路的电动势RI是整‹¹æ×o波电路的½{‰æ•ˆå†…阻åQŒU是未¾lç¨³å®šçš„输入电压åQŒU2是输出的½E›_®šç”µåŽ‹åQŒI是输出电‹¹ï¼ŒRL是外负蝲åQŒç£æ˜¯è¿‡ç”‰|µä¿æŠ¤ç”µèµ\的检‹¹‹ç”µé˜»ï¼ŒBGä¸ø™°ƒæ•´ç®¡åQŒBG2为放大管åQŒD为基准稳压管åQŒR和R2为取æ ïL”µé˜»ï¼Ž˜q™ç§ž®†è°ƒæ•´çñ”与负载串联的½E›_Ž‹ç”‰|º¿UîCؓ串联型稳压电源。其调整作用是连¾l­çš„åQŒæ‰€ä»¥åˆ¿UîCؓ¾U¿æ€§è°ƒæ•´åž‹½E›_Ž‹ç”‰|ºåQŽè°ƒæ•´ä½œç”¨æ˜¯åˆ©ç”¨è´Ÿåé¦ˆçš„原理来获得的åQšç”µé˜»R和R2åQŒç»„成的分压器用来把输出电压U的变动量的一部分取出来,加至攑֤§½Ž¡BG的基¾U§ä¸ŠåQŒæ‰€ä»¥R和R2支èµ\¿UîCؓ取样电èµ\åQŽä»ŽR取得的电压U叫做取样电压åQŽäؓ了保证取æ ïL”µåŽ‹åªåæ˜ U的变动,而不受BG基极甉|µ1的媄响,在设计中要ä‹É通过R和R2的电‹¹I8˜qœå¤§äº?HZ。由¼‹…稳压管Df和限‹¹ç”µé˜»R¾l„成的电路用来提供基准电压,它等于稳压管D的稳定电压UråQŒåŠ åˆ°æ”¾å¤§ç®¡BG的发ž®„极。BGèµïL€ž®†å–æ ïL”µåŽ‹Ub和基准电压Uz˜q›è¡Œæ¯”较òq¶å¯¹å…¶å·®å€ÆD¿›è¡Œæ”¾å¤§çš„作用åQŒæ‰€ä»¥ç§°ä¸ø™¯¯å·®æ”¾å¤§å™¨U和Uz的差值UAB¿UîCؓ误差电压åQŒUAB=UR是误差放大器的负载电阅R€‚从BG输出的控制电‹¹åŠ åˆ°è°ƒæ•´ç®¡BG的基极用来控制BG的基极电‹¹ç›´‹¹ï¼Œç›´æµ½E›_Ž‹ç”‰|ºçš„自载稳定度辑ֈ°¾l´æŒè¾“出电压˜q‘似不变的调整作用ã€?/p><p style="text-indent:2em;"> <span style="color:#ff0000;">˜q™ç¯‡æ–‡ç« æ‚¨æˆ–许更喜欢åQ?/span> </p><p style="text-indent:2em;"><b><a target="_blank" style="font-weight:bold">直流½E›_®šç”‰|º</a></b>品质高端åQŒè§„格齐全ã€?/p><p style="text-indent:2em;">直流甉|ºä¸­å¸¸è§æœ¯è¯?/p><p style="text-indent:2em;">1.交流电:½Ž€¿U°AC</p><p style="text-indent:2em;">甉|µçš„大ž®å’Œæ–¹å‘随时间作周期性变化ã€?/p><p style="text-indent:2em;">2.直流电:½Ž€¿U°DC</p><p style="text-indent:2em;">甉|µçš„大ž®å’Œæ–¹å‘都不变ã€?/p><p style="text-indent:2em;">3.恒压åQšç®€¿U°CV</p><p style="text-indent:2em;">无论负荷如何变化åQŒç”µæºè¾“出的电压都不会改变ã€?/p><p style="text-indent:2em;">4.恒流åQšç®€¿U°CC</p><p style="text-indent:2em;">无论负荷如何变化åQŒç”µæºè¾“出的甉|µéƒ½ä¸ä¼šå˜åŒ–ã€?/p><p style="text-indent:2em;">5.限流保护åQšç®€¿U°CLP</p><p style="text-indent:2em;">当保护线路的甉|µ˜q‡å¤§åQŒå°±è¦é™åˆ¶ç”µ‹¹ï¼Œè®©å®ƒæ¢å¤åˆ°æ­£å¸¸èŒƒå›´ã€?/p><p style="text-indent:2em;">6.˜q‡æ¸©ä¿æŠ¤åQšç®€¿U°OTP(什么是˜q‡æ¸©åº¦ä¿æŠ¤OTP)<½E›_®š/<a target="_blank">直流½E›_®šç”‰|º</a>很常见p><p 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