}ĿijƼСMOӋDʾ܇D·ģԭDָͨʾԓָʾl⣩l⣩Wq·Դ늉12V׃ָʾҎ顰12V3WR0鶨ֵDDָʾΪWqr늉ɶˌH늉Srg׃ҎDʾOָʾ費׃늴FȦFֵӋ
1ָʾ裻
2D_PSc|c2͡3ͨrָʾlBµČH늹clr늹ʵıֵ
3D_PSc|c4͡5ͨrָʾWq1minĵܣ
𰸡
1⣺P=
ָʾ裺
RL= =
=48
2⣺D_PSc|c2͡3|rɈDҿָ֪ʾlrR0ɶ˵늉U0=9.6V
·п늉ڸ늉ָ֮ͣʾɶ˵늉
UL=UU0=12V9.6V=2.4V
tָʾČHʣ
PL= =
=0.12W
֪lr늹P~=3W
tָʾlBµČH늹clr늹ʵıֵ =
=0.04
3⣺D_PSc|c4͡5|rɈDҿ֪湤ڞ0.3sһڃlrg0.2slrg0.1s
tָʾWq1min
lĕrgt1= 0.2s=40slĕrgt2=tt1=60s40s=20s
P= ɵlĵܣ
W1=PLt1=3W40s=120J
lrĵܣ
W2=PLt2=0.12W20s=2.4J
ܣ
W=W1+W2=120J+2.4J=122.4J
1ָ֪ʾ~늉~P= ָʾ裻2D_PSc|c2͡3|rɈDҿ֪R0ɶ˵늉·늉cָʾɶ˵늉P=
ָʾlBµČH늹ʣȻ֪clr늹ʵıֵ3D_PSc|c4͡5|rɈDҿ֪湤ںһڃȹrgDָʾWq湤1minlĕrgMһlĕrgP=
lĵܺlrĵ֮ͼ鹲ܣ
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