1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2014/2/21 星期五 Sheet of
File: D:\PCB设计\..\HJ-4WD.SchDoc Drawn By:
C1
220uF
VCC
L1
R3
1K
电源供电系统
GND
1
2
3
KS1
电源开关
1
2
3
4
5
6
J2
GND
VCC
2
3
IN
1
U7 7805
EN1
1
OUT1
3
GND
5
GND
4
GND
12
OUT3
11
GND
13
IN3
10
IN1
2
OUT2
6
IN4
15
EN2
9
OUT4
14
VCC2
8
VCC
16
IN2
7
U1-1
L293D
R1
1K
7.2V
R2
1K
VCC
GNDGND
GND
7.2V
GND
C2
220uF
GND
VCC
电源指示
C3 104
GNDVCC
1
2
J15
1
2
J16
OTU1
OTU2
OTU3
OTU4
OTU1
OTU2
OTU3
OTU4
GND
C15104
7.2V
1
2
3
4
5
6
J3
EN1
1
OUT1
3
GND
5
GND
4
GND
12
OUT3
11
GND
13
IN3
10
IN1
2
OUT2
6
IN4
15
EN2
9
OUT4
14
VCC2
8
VCC
16
IN2
7
U1-2
L293D
R21
1K
7.2V
R22
1K
VCC
GNDGND
C17104
GNDVCC
1
2
J17
1
2
J18
OTU5
OTU6
OTU7
OTU8
OTU5
OTU6
OTU7
OTU8
GND
C16104
7.2V
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
P1.0
P1.2
P1.4
P1.6
EN1
EN2
EN3
EN4
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
EN1
EN2
EN3
EN4
1 2
3 4
5 6
7 8
J20
Header 4X2
VCC
VCC
VCC
VCC
GND
GND
GND
GND
1
2
P00Header 2
1
2
P01Header 2
VCC
1
2
3
J1
VCC
单片机
IO
口输入
2
路电机输出
-
分别接到电机上
2
路电机输出
-
分别接到电机上
单片机
IO
口输入
7.2V
供电输入
EN1-4
使能
VCC
5V
电源，
VCC GND
