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1\u7cfb\u7edf\u786c\u4ef6\u8bbe\u8ba1
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1.1\u7cfb\u7edf\u7535\u6e90\u6a21\u5757
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1.2\u7535\u538b\u8c03\u6574\u6a21\u5757
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1.3 D\uff0fA\u8f6c\u6362\u6a21\u5757
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1.4\u663e\u793a\u4e0e\u952e\u76d8\u6a21\u5757
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2\u7cfb\u7edf\u8f6f\u4ef6\u8bbe\u8ba1
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3 \u7ed3\u675f\u8bed
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\u56fe\u53ea\u80fd\u4e0a\u4f20\u4e00\u5f20,\u6211\u5c31\u4e0d\u4e0a\u4f20\u4e86.\u4f60\u81ea\u5df1\u53bb\u4e0b\u9762\u7684\u53c2\u8003\u8d44\u6599\u770b\u5427!
\u7a33\u538b\u7535\u6e90:\u80fd\u4e3a\u8d1f\u8f7d\u63d0\u4f9b\u7a33\u5b9a\u7684\u4ea4\u6d41\u7535\u6216\u76f4\u6d41\u7535\u7684\u7535\u5b50\u88c5\u7f6e
用输出可调的正电压输出线性稳压器LM317即可。实用电路如下图（要保证输出电压调节范围，可调电阻R2的阻值至少要是R1的3倍以上，当R2的阻值为R1的3倍时，输出电压为12V，当R2的阻值为R1的2倍时，输出电压为9V）——
直流稳压电源
绛旓細鐢垫簮鍙樺帇鍣ㄥ彲浠ラ夌敤杈撳嚭鐢靛帇涓15V鐨25W鍙樺帇鍣紝瀹冨湪鐢电綉鐢靛帇涓嬭穼10%鎯呭喌涓嬬殑鍓竟杈撳嚭鐢靛帇宄板间负19.89V锛屾ˉ寮忔暣娴佸苟婊ゆ尝鍚庣數鍘嬩负17.7V宸﹀彸銆侺M317姝ｅ父宸ヤ綔闇瑕佹渶灏3V鐨勮緭鍏ヨ緭鍑虹數鍘嬪樊锛17.7V姝ｅソ鏄湪12V+3V鐨勫熀纭涓婄◢寰暀鏈変綑鍦帮紝杩欎篃鏄繀椤荤殑锛屽洜涓鸿繕鏈夊皯閲忕殑绾规尝鐢靛帇涔熻鑰冭檻鍦ㄥ唴銆
绛旓細濡傛灉浣犻夋嫨鐩墠鐨勫弻15V锛屽彉鍘嬪櫒灏遍渶瑕佺敤25W鐨勩傛暣娴佹护娉㈠悗鐨鐩存祦鐢靛帇楂樿揪18V锛屽綋杈撳嚭3V 鐨勬椂鍊欙紝LM317涓ょ鐨勫帇闄嶄负15V銆鐢垫簮鎻愪緵缁欒礋杞界殑鍔熺巼涓3W锛岃孡M317鑷韩娑堣楃殑鍔熺巼涓15W銆傝繖灞炰簬璁捐涓ラ噸姣斾緥澶辫皟锛屽苟涓斿疄闄呭簲鐢ㄦ椂锛屼笁绔绋冲帇鍧椾細寰堢儹锛岄渶瑕佸姞杈冨ぇ鐨勬暎鐑墖锛屼娇寰楃數婧愭垚鏈篃鍔犲ぇ浜嗐傚彟澶栵紝鍦ㄨ緭鍑7....
绛旓細鐢ㄤ竴鍙220Vac/12Vac鐨鐢垫簮鍙樺帇鍣紝瀵瑰叾杈撳嚭浣滄ˉ寮忔暣娴佸悗鐢ㄨ緝澶х殑鐢靛婊ゆ尝锛岀劧鍚庢帴7809鍗冲彲锛堣緭鍑哄鍦颁篃瑕佹帴鐢靛锛夈傚鏋滆姹傛晥鐜囧緢楂樺苟涓旂數缃戠數鍘嬪緢绋冲畾锛屽彲浠ュ畾鍋氫竴鍙10Vac鍓竟甯︿腑蹇冩娊澶寸殑鐢垫簮鍙樺帇鍣紝鐢ㄤ袱鏀暣娴佷簩鏋佺浣滃叏娉㈡暣娴併佹护娉紝杩欐牱寰楀埌鐨鐩存祦鐢靛帇鏄13V宸﹀彸锛屾瘮7809瑕佹眰鐨勬渶灏忚緭鍏ョ數鍘12Vdc鐣ラ珮...
绛旓細鍦ㄩ噰鐢ㄩ泦鎴愮數璺疢P1593 璁捐鐩存祦绋冲帇鐢垫簮鏃讹紝鏈変互涓嬪嚑鐐瑰煎緱娉ㄦ剰锛1. 濡傛灉杈撳嚭鐨勭數鍘嬩笉鏄 +5V 鑰屾槸 +3.3V銆+1.8V 鎴栬呭叾瀹冭緭鍑虹數鍘嬶紝杩欐椂鍦ㄨ璁P1593 鐨勫簲鐢ㄧ數璺椂锛岋紙 鍥3 锛 涓殑鏌愪簺鍏冧欢鐨勫弬鏁版槸闇瑕佽繘琛岃皟鏁寸殑锛 濡傦細L1銆丏1銆丆6銆丷3銆丷4銆丷5銆丷6閮介渶瑕佹牴鎹緭鍑虹數鍘嬬殑澶у皬鑰岄噸鏂伴夋嫨閫傚綋鐨...
绛旓細LM317鐨勫吀鍨嬪簲鐢ㄧ數璺鍥句腑涓婅竟鐢佃矾鍥撅紝杈撳嚭鐢靛帇涓庢瘮渚嬬數闃荤殑鍏崇郴寮忎腑Iadj寰堝皬涓嶈秴杩100渭A锛屽洜姝ゅ彲浠ュ拷鐣ヤ笉璁°傚彧瑕丷1涓嶳2鐨勯樆鍊兼瘮渚嬬瓑浜1.25锛10.75鍗冲彲浣胯緭鍑虹數鍘嬬瓑浜12V銆傜敤LM317瀹炵幇800mA鎭掓祦杈撳嚭鐨勭數璺鍥句腑涓嬭竟鐢佃矾鍥撅紝浣縍1绛変簬1.5惟鍗冲彲銆
绛旓細鍓嶈竟鐢ㄤ釜绾挎у彉鍘嬪櫒鍏辨娊澶达紝鍙孉C10V锛屾ˉ寮忔暣娴侊紝婊ゆ尝鍚庡氨鏈夎剦鍔20澶氫紡鐨鐩存祦鐢碉紱7812杈撳叆绔帴姝ょ洿娴侊紝鎺ュ湴绔笌鐪熸鐨勫湴涔嬮棿涓蹭竴涓彲璋冪數浣嶅櫒锛岃皟鏁寸數鍘嬶紝鍦ㄨ緭鍑虹涓庡師鍦扮闂翠覆涓涓數闃伙紝杩欐牱灏卞彲浠ュ垎鍘嬮噰鏍凤紝骞惰皟鏁寸數鍘嬨備絾鎰熻涓嶅強鐢↙M317濂姐
绛旓細渚涚數绯荤粺浣跨敤鐨勬槸V浜ゆ祦鐢碉紝鑰岀數瀛愯澶囧熀鏈笂閮介渶瑕佷娇鐢-V鐨勭洿娴佺數銆備负瑙ｅ喅渚涚數绯荤粺涓庣敤鐢佃澶囩殑鐭涚浘锛屽氨闇瑕鐩存祦绋冲帇鐢垫簮锛屽皢楂樺帇浜ゆ祦鐢碉紝鍙樻垚浣庡帇鐩存祦鐢点傚皢楂樺帇浜ゆ祦鐢佃浆鎹㈡垚浣庡帇鐩存祦鐢碉紝闇瑕佺粡杩囦互涓嬪嚑涓樁娈碉細浠庨珮鍘嬩氦娴佺數鍒颁綆鍘嬩氦娴佺數鐨勫彉鍘嬬幆鑺傦紝浠庝氦娴佺數鍒扮洿娴佺數鐨勬暣娴佺幆鑺傘備絾姝ゆ椂鐨勭洿娴佺數绾规尝闈炲父澶э紝...
绛旓細閫氳繃鏈璁捐,璁╂垜浠洿杩涗竴姝ョ殑浜嗚В鍒鐩存祦绋冲帇鐢垫簮鐨勫伐浣滃師鐞嗕互鍙婂畠鐨勮姹傚拰鎬ц兘鎸囨爣.涔熻鎴戜滑璁よ瘑鍒板湪姝ゆ璁捐鐢佃矾涓墍瀛樺湪鐨勯棶棰;鑰岄氳繃涓嶆柇鐨勫姫鍔涘幓瑙ｅ喅杩欎簺闂.鍦ㄨВ鍐宠璁￠棶棰樼殑鍚屾椂鑷繁涔熷湪鍏朵腑鏈夋墍鏀惰幏.鎴戜滑杩欐璁捐鐨勮繖涓洿娴佺ǔ鍘嬬數婧愮數璺;閲囩敤浜嗙數鍘嬭皟鏁寸(uA723)澶栧姞璋冩暣绠(2SC3280)鏉ュ疄鐜扮數鍘嬬殑璋冩暣閮ㄥ垎;...
绛旓細鏈绠鍗曟槸鍦5V鐩存祦绋冲帇鐢佃緭鍑轰覆涓浜屾瀬绠(渚嬪:1N4002)渚挎湁4.4V绋冲帇杈撳嚭. 鍚﹀垯瑕佺敤鍙皟杈撳嚭绋冲帇鐢佃矾.S1鏄鐢垫簮寮鍏, F1鏄0.5A淇濋櫓涓. 鍙樺帇鍣═1鏄皢浜ゆ祦220浼忚浆鎹㈡垚6.3浼忎綆鍘. D1 鑷 D4 鏄釜鎶婁氦娴佺數鍘嬭浆鎴愯繎浼肩洿娴佺數鍘嬬殑妗ュ紡鏁存祦(鍥涗釜1N5402浜屾瀬绠). C1 鍜 C2(2,200uF, 25V)鏄妸妗ュ紡鏁存祦寰...
绛旓細娉ㄦ剰: 鑾峰彇鍏ㄥ璧勬簮锛岃瑙佹枃鏈鏄庘璁捐瑕佹眰 1銆佽緭鍑虹數鍘嬪湪1.25V~37V鍙皟锛 2銆佹渶澶ц緭鍑虹數娴佷负1.5A锛 3銆佺數鍘嬭皟鏁寸簿搴﹁揪0.1%锛涙憳瑕 鐩存祦绋冲帇鐢垫簮鐢辩數婧愬彉鎹㈠櫒銆佹ˉ寮忔暣娴佹护娉㈢數璺互鍙婄ǔ鍘嬬數璺瀯鎴愩傚彉鍘嬪櫒灏嗗伐棰50Hz 220V鐨勪氦娴佸鐢ㄧ數婧愬彉涓轰綆鍘嬩氦娴佺數婧愶紝鍐嶅埄鐢ㄦ暣娴佺數璺皢浜ゆ祦鐢靛帇鍙樹负鍗...
