multisim上电后为什么电数码管会先闪现一下数字8之后归零?
\u4e03\u6bb5\u6570\u7801\u7ba1\uff0c\u6388\u6743\u4ee3\u7406\u5546\uff0c\u9009\u578b\u5e2e\u52a9\uff0c\u73b0\u8d27\uff0c\u4e13\u4e1a\u6280\u672f\u670d\u52a1 你搭的电路问题绛旓細UP,DOWN閮芥槸涓婂崌娌胯Е鍙戯紝涓嶄娇鐢ㄧ殑璇濇帴鍦板ソ浜涳紝鎺ラ珮鐢靛钩鐨勮瘽锛屽彲鑳涓婄數鏃朵細瑙﹀彂涓娆″姩浣滐紝鍒濆0鍑1灏辨垚浜9銆
绛旓細寰堟甯稿晩銆傝鐪浠涔鐢佃矾锛岀畝鍗曠殑濡傛斁澶х數璺佹尟鑽$數璺紝鏃犻渶澶栨帴淇″彿婧愰┍鍔紝鍙互鑷鍚姩銆備綘杩樻槸鐢ㄧ殑灏戙
绛旓細鐢垫簮浣跨敤鐨勬槸DC锛堢洿娴侊級妯″瀷绗﹀彿锛岃屼竾鐢ㄨ〃璁剧疆涓轰氦娴佺數娴佹。锛岀數璺腑娌℃湁浜ゆ祦淇″彿鍙祴閲忥紝鎵浠ヤ竾鐢ㄨ〃涓鐩存樉绀轰负0銆
绛旓細V1鏄椂閽熸簮锛岃緭鍑洪珮銆佷綆鐢靛钩鐢靛帇鍒嗗埆鏄+5V鍜0V銆俋FG1鏄嚱鏁颁俊鍙峰彂鐢熷櫒锛屼綔鏃堕挓淇″彿婧愭椂搴斿皢鈥淐ommon鈥濇帴鍦般傚湪鍙傛暟璁剧疆椤光滃亸缃甇ffset鈥濅负0鎯呭喌涓嬶紝鑻モ淐ommon鈥濇帴鍦帮紝鈥+鈥濊緭鍑虹數鍘嬬殑鏈澶у煎拰鏈灏忓煎垎鍒负 Vp鍜-Vp锛堚-鈥濊緭鍑虹數鍘嬩笌鈥+鈥濆箙搴︾浉鍚岋紝浣嗘瀬鎬х浉鍙嶏級锛岃嫢瑕佷笌V1杈撳嚭鐩稿悓锛屾帴鍦伴』灏嗏...
绛旓細銆傘傚鏋滆〃姝e父锛屾庝箞浼氬憿锛 妫鏌ヤ竴涓嬶紝鐪嬫槸琛ㄧ殑闂锛岃繕鏄紑鍏抽棶棰樸傛柟娉曪細灏嗕袱琛ㄧ瑪鐭矾锛岃〃鎸囩ず鐢甸樆涓0锛岃〃姝e父锛屽啀妫鏌ュ紑鍏冲櫒浠躲傝嫢涔熷彲涓0锛屾鏌ヨ繛鎺ョ殑瀵肩嚎鍟︺
绛旓細multisim 瀵肩嚎杩炴帴澶勪細鏈変竴涓皬绾㈢偣锛岃〃绀哄凡缁忚繛涓婏紝濡傛灉娌℃湁鍑虹幇绾㈢偣锛岃〃绀烘湭杩炴帴涓娿傛帴鍦扮殑鏃跺欎笉瑕佸皢鍦扮嚎鐩存帴杩炲湪璁惧鎴栬呮槸瀵肩嚎涓婏紝鏈濂芥帴鍦扮鍙锋媺杩滀竴鐐癸紝閲嶆柊寮勪竴鏉$嚎杩涜杩炴帴锛屼繚璇佺數璺繛绾块氱晠銆備娇鐢ㄥ弬鏁拌В鍐筹細TransferFunctionAnalysis锛堜紶杈撳嚱鏁板垎鏋愶級WorstCaseAnalysis锛堟渶宸儏鍐靛垎鏋愶級PoleZero...
绛旓細杩愮畻鏀惧ぇ鍣ㄥ紑鐜娇鐢紝涓鑸氨鏄笉鏄鍚戦ケ鍜屽氨鏄礋鍚戦ケ鍜屻傛墍浠ヨ繍绠楁斁澶у櫒涓鑸苟涓嶆槸寮鐜娇鐢紝鑰屾槸璐熷弽棣堥棴鐜娇鐢ㄣ傝礋鍙嶉闂幆浣跨敤灏变笉瀹规槗楗卞拰浜嗐傚彲浠ラ槄璇绘ā鎷熺數瀛愭妧鏈被鏁欑涔︽潵瑙e喅姝ょ被鐤戦棶銆
绛旓細杩欎釜鍥剧殑澶ф鎰忔濓紝鏄兂鍒╃敤涓涓俊鍙锋簮鍔犺浇鍦ㄨ緭鍑虹锛岀劧鍚庢祴閲忎俊鍙锋簮鍦ㄨ緭鍑虹鐨勭數鍘嬪箙搴﹀拰鐢垫祦锛屼粠鑰岃绠楀嚭涓夋瀬绠℃斁澶х數璺殑杈撳嚭鐢甸樆銆傛濊矾娌℃湁闂锛屼篃鍙互浠跨湡鍑烘潵銆備絾鏄棶棰樺湪浜庤繖涓數璺腑鐨勫亸缃數闃婚兘蹇呴』姝g‘璁剧疆锛屼娇涓夋瀬绠″伐浣滀簬绾挎ф斁澶х姸鎬侊紝涓斾俊鍙锋簮骞呭害涓嶅疁杩囬珮锛堣繃楂樻湁鍙兘浼氫娇涓夋瀬绠E鏋佺數鍘嬩箣闂...
绛旓細闆嗙數鏋佷笌鍙戝皠鏋佷箣闂存渶澶х數鍘 銆傜粡鏌ヨmultisim鐨勫厓浠跺簱鐨勭浉鍏宠祫鏂欏緱鐭ワ紝multisim鐨勫厓浠跺簱涓74hc闂ㄧ數璺悗鏍囩殑鐢靛帇鏄寚闆嗙數鏋佷笌鍙戝皠鏋佷箣闂寸殑鏈澶х數鍘嬨Multisim鏄編鍥藉浗瀹朵华鍣紙NI锛夋湁闄愬叕鍙告帹鍑虹殑浠indows涓哄熀纭鐨勪豢鐪熷伐鍏枫
绛旓細杈撳嚭楗卞拰浜锛宱p07鐨刴odel鍐呰缃殑vsat+- 閮芥槸2V, 鎵浠ヤ綘鐜板湪鐨勮緭鍑3V =VCC-Vsat 灏辨槸楗卞拰浜嗭紝楗卞拰鐨勫師鍥犱綘鐨勮繍鏀炬槸寮鐜殑锛岃緭鍏ヤ竴鐐圭偣鐨勪笉骞宠 锛堜緥濡傚け璋冪瓑锛夛紝灏变細瀵艰嚧杈撳嚭楗卞拰銆