带无线自动校时的数字钟电路设计原理图

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
7 8 9 10 11 12 4
e d h c g w4 R17 300K +9 Q3 PNP Q4 PNP
C17 GND 0.01
+5 S2 S3 S4 S5 R19 R20 R21 R22
C14 104
C15 104 R16
GND R18 GND C +5 Q2 PNP U4 GND 30PF GND Res2 1K C18
2
5
4
1K
30PF C19
Y1
1
1 2 3 4 C16 5 CAP 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
P1.0 VCC P1.1 P0.0(AD0) P1.2 P0.1(AD1) P1.3 P0.2(AD2) P1.4 P0.3(AD3) P1.5 P0.4(AD4) P1.6 P0.5(AD5) P1.7 P0.6(AD6) RST P0.7(AD7) P3.0(RXD) EA(VPP) P3.1(TXD) ALE(PROG) P3.2(INT0) PSEN P3.3(INT1) P2.7(A15) P3.4(T0) P2.6(A14) P3.5(T1) P2.5(A13) P3.6(WR) P2.4(A12) P3.7(RO) P2.3(A11) XTAL2 P2.2(A10) XTAL1 P2.1(A9) GND P2.0(A8) AT89C51
B +9V T1 F1 D4 Bridge1 U2 AC220V F2 C11 2200pF 1 V IN
GND
U1A 74LS00
R14 100K
B
+5V
3
GND D5 2N681
源自文库
7809 V OUT GND
2
U3 3 C12 470PF 1
7805 V OUT GND
2
V IN
3 S1
C13 103
U1B 74LS00 GND
C
+5 Q5 PNP Q6 PNP
+5
D Title Size:
6
D
:
A4
Number: * Revision: *
Date: 2011-3-20 Time: 09:59:56Sheet * of * File: C:\Documents and Settings\Administrator\ \ 1 2 3
* * * * * \ .SchDoc 4
1
2
3
4
C1
R1 R2 Res2 10K 3300PF R4 AR1 LM324 R10 10K 51K 51K C4 0.47UF 51K 51K C5 0.47UF 51K R5 R6 R7 3300PF R8 A C2 C3
0.01uf A L1 E1 R9 D1 R3 51K
220uf
L2 C7
C6
2N681 Q1 NPN C8 0.01uf
GND AR2 LM324
GND R11 AR3 51K LM324 C9 0.1UF
2 1
0.01uf
R12 10K GND
C10 10U
R13 Res2 1K +9 D2 D3 R15 1K LED 1 +5 1 2 3 4 5 6 +5 RP1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 RESPACK4 w1 a f w2 w3 b