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DPM Circuit Mi01-297

This document contains a circuit diagram with 3 transistors, 9 resistors, and 2 capacitors connected to a microcontroller. The transistors are connected in a common-collector configuration to drive an 7-segment display. The resistors are connected between the microcontroller pins and the bases of the transistors to control the display. The capacitors are connected from the power supply to ground for filtering.

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MARS
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135 views1 page

DPM Circuit Mi01-297

This document contains a circuit diagram with 3 transistors, 9 resistors, and 2 capacitors connected to a microcontroller. The transistors are connected in a common-collector configuration to drive an 7-segment display. The resistors are connected between the microcontroller pins and the bases of the transistors to control the display. The capacitors are connected from the power supply to ground for filtering.

Uploaded by

MARS
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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A MI01-297 A

+5V VCC

+5V VCC
+5V VCC
B 10µF B
Q2 R19 1kΩ C1
BC847
R1 100Ω PRG1
DS4
G 1
E DS4
1 10
D F
DS4
2
3
9
8
C2 104pF 2
C A
DP
4 7
B
3
5 6
C 4 C

28

14
7 SEG U1
5

GND
19 19

VCC
+5V VCC 13
P1.1 15
P1.0
A
16
P0.2 P2.0
20 R2 470Ω
Q1 R18 1kΩ
BC847 B
DS3 P2.1
8 R3 470Ω
D 27 D
E
G
DS3
P0.6 C
1 10
D 2 9 F
P2.2
21 R4 470Ω
DS3 3 8
C A 26 D
DP
4 7
B P0.4 7 R5 470Ω
5 6 P2.3
E
7 SEG 17
P2.4 22 R6 470Ω
+5V VCC P1.4
E F E
6 R7 470Ω
11 P2.5
P1.5 G
P2.6
23 R8 470Ω
Q3 R20
1kΩ 18 DP
BC847 P1.6 5 R9 470Ω
DS2 P2.7
G
E DS2
1 10
D F 10 1
F DS2
2 9 P1.7 P0.7 F
3 8 A
C 9
4 7 9 R10 J1
DP 5 6 B
24
1kΩ JUMPER
P0.0 1 2
7 SEG +5V VCC
2
P0.5
4 3 S1
P0.1 P0.3 1 2
G 12 25 R11 1kΩ CN1 CN2A G
R22 P1.3 P0.2
Q5 1kΩ 1 1 S2
BC847
DS1 28 PIN R12 1kΩ 2 2 1 2

E G
DS1
D
1 10
F R14 1kΩ 3 3 S3
2 9 2
DS1 1
C
3 8 A 4 4
4 7
DP 5 6 B
H 4 PIN H
7 SEG
DR1

R29 VR/CT
+
VR
1
1MΩ 1/2W 2
I R23 I
1kΩ 3 DR2/shunt
CN4
VN
-

J J

1
BR1 +5V VCC
CN2 RG11
1 LM7805CT
9V
4 2 1 LINE VREG
3
K 0V VOLTAGE K
2
CONN DIODE BRIDGE COMMON
3 C3 C8 C12
2
104pF
100/25

100/25
L L

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