鑴夊璋冨埗
(PWM)
鐩存祦鐢靛姩鏈烘帶鍒跺櫒
鑴夊璋冨埗鐨勫叏绉颁负锛?/p>
Pulse
Width
Modulator
锛岀畝绉?/p>
PWM
銆傜敱浜庡畠鐨勭壒娈婃�?/p>
鑳斤紝甯歌鐢ㄤ綔鐩存祦鍥炶矾涓伅鍏疯皟鍏夋垨鐩存祦鐢靛姩鏈鸿皟閫熴�傝繖閲屽皢瑕佷粙缁嶇殑灏辨槸鍒?/p>
鐢ㄨ剦瀹借皟鍒?/p>
(PWM)
鍘熺悊鍒朵綔鐨勯┈杈炬帶鍒跺櫒
(
瑙佸浘
1)
銆傛湁鍏崇數璺凡缁忓湪姹借溅浠〃
鐓ф槑銆佽溅鐏収鏄庤皟鍏夊拰璁＄畻鏈虹數婧愭暎鐑鎵囨柟闈㈠緱鍒板簲鐢ㄣ�傝瑁呯疆鍙敤浜?/p>
12v
鎴?/p>
24v
鐩存祦鐢佃矾涓紝涓よ�呴棿鍙渶绋嶅仛鍙樺姩銆傚畠涓昏鏄�氳繃鏀瑰彉杈撳嚭鏂规尝鐨勫崰绌?/p>
姣旓紝浣垮緱璐熻浇涓婄殑骞冲潎鎺ラ�氭椂闂翠粠
0-100
锛呭彉鍖栵紝浠ヨ揪鍒拌皟鏁磋礋杞戒寒搴?/p>
/
閫熷害鐨?/p>
鐩殑銆傛妧鏈寚鏍囷細
PWM
棰戠巼
400Hz
锛?/p>
PWM
鍔熺巼娑堣�?/p>
1.5mA(12V
鐢垫簮銆佹棤璐?/p>
杞藉拰
LED)
锛涜緭鍑哄閲?/p>
3A(
閲囩敤
IRF521
FET)
锛涘伐浣滅數鍘?/p>
12V
鎴?/p>
24V
銆備竴銆?/p>
PWM
绠�浠嬪埄鐢ㄨ剦瀹借皟鍒?/p>
(PWM)
鏂瑰紡瀹炵幇璋冨厜
/
璋冮�熺殑濂藉鏄數婧愮殑鑳介噺鑳藉緱鍒?/p>
鍏呭垎鍒╃敤锛岀數璺殑鏁堢巼楂樸�備緥濡傦細褰撹緭鍑轰负
50
锛呯殑鏂规尝鏃讹紝鑴夊璋冨埗
(PWM)
鐢?/p>
璺秷鑰楃殑鐢垫簮鑳介噺涔熶负
50
锛咃紝鍗冲嚑涔庢墍鏈夌殑鑳介噺閮借浆鎹负璐熻浇鍔熺巼杈撳嚭銆傝�岄噰
鐢ㄥ父瑙佺殑鐢甸樆闄嶅帇璋冮�熸椂锛岃浣胯礋杞借幏寰楃數婧愭渶澶ц緭鍑哄姛鐜?/p>
50
锛呯殑鍔熺巼锛岀數婧?/p>
蹇呴』鎻愪緵
71
锛呬互涓婄殑杈撳嚭鍔熺巼锛岃繖鍏朵腑
21
锛呮秷鑰楀湪鐢甸樆鐨勫帇闄嶅強鐑�椾笂銆傛湁
鏃剁數璺殑杞崲鏁堢巼鏄潪甯搁噸瑕佺殑銆傛澶栵紝閲囩敤鑴夊璋冨埗
(PWM)
鏂瑰紡鍙互浣胯礋杞?/p>
鍦ㄥ伐浣滄椂寰楀埌婊＄數婧愮數鍘嬶紝杩欐牱鏈夊埄浜庡厠鏈嶇數鏈哄唴鍦ㄧ殑绾垮湀鐢甸樆鑰屼娇鐢垫満浜х敓
鏇村ぇ鐨勫姏鐭┿�傚綋鐒讹紝閲囩敤鑴夊璋冨埗
(PWM)
鏂瑰紡瀹炵幇璋冨厜
/
璋冮�熶篃鏈変竴浜涗笉鍒╂柟闈紝
濡傜數璺瀯鎴愪細绋嶈澶嶆潅锛岃�屼笖鏈夊彲鑳戒細浜х敓涓�浜涘皠棰戝共鎵?/p>
(RFI)
锛岃閬垮厤杩欎釜闂?/p>
棰橈紝鍦ㄨ璁℃椂鍙互鑰冭檻璐熻浇涓庢帶鍒跺櫒灏藉彲鑳芥斁鍦ㄤ竴璧凤紝浠ュ厤瀹冧滑涔嬮棿鐨勮繛绾胯繃
闀匡紝蹇呰鏃惰繕鍙互鑰冭檻鍦ㄧ數婧愬澧炲姞婊ゆ尝鍣ㄧ瓑鏂规硶銆備簩銆佸伐浣滃師鐞嗙數璺師鐞嗚
鍥?/p>
1
銆傚畠涓昏鐢?/p>
U1
锛?/p>
LM324
锛夊拰
Q1
缁勬垚銆傚浘
1
涓紝鐢?/p>
U1a
銆?/p>
U1d
缁勬垚鎸崱鍣?/p>
鐢佃矾锛屾彁渚涢鐜囩害涓?/p>
400Hz
鐨勬柟娉?/p>
/
涓夎褰㈡尝銆?/p>
U1c
浜х敓
6V
鐨勫弬鑰冪數鍘嬩綔涓烘尟
鑽″櫒鐢佃矾鐨勮櫄鎷熷湴銆傝繖鏄负浜嗘尟鑽″櫒鐢佃矾鑳藉湪鍗曠數婧愭儏鍐典笅涔熻兘宸ヤ綔鑰屼笉闇�瑕?