atmega128 i/o power control ( solid state switch, relay)
DESCRIPTION
ATMega128 I/O Power Control ( Solid State Switch, Relay). Computer-Controlled Current Switches BJT Transistors. 전류 제어 Switch(BJT ) NPN Transistor Model. PNP Transistor Model. 여러 가지 Relay 예. 8.5.1 Introduction to Relays. 제어 회로와 다른 전원으로 구동하는 Relay 의 예. - PowerPoint PPT PresentationTRANSCRIPT
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KyungHee Univ. 2-1
ATMega128 I/O Power Control( Solid State Switch, Relay)
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KyungHee Univ. 2-2
Computer-Controlled Current SwitchesBJT Transistors
전류 제어 Switch(BJT)NPN Transistor Model
PNP Transistor Model
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KyungHee Univ. 2-3
여러 가지 Relay 예
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KyungHee Univ. 2-4
8.5.1 Introduction to Relays
제어 회로와 다른 전원으로 구동하는 Relay 의 예
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KyungHee Univ. 2-5
여러 가지 제어소자의 사진EM, Solid-state, Reed Relay
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KyungHee Univ. 2-6
Electromagnetic Relays 의 구조
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KyungHee Univ. 2-7
Electromagnetic Relays Basics여러 가지 Relay 의 구조 예
Relay 의 구조에 따른 Activation Sequence
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KyungHee Univ. 2-8
Reed Relay 의 구조
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KyungHee Univ. 2-9
Solenoid Relay 의 구조
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KyungHee Univ. 2-10
Solenoid Relay 사진
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KyungHee Univ. 2-11
Interfacing EM Relays, Solenoids, and DC Motors
Current Sink 구조 예
Snubber diode
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KyungHee Univ. 2-12
EM Relays 와 Solenoids 의 Interfacing 예
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KyungHee Univ. 2-13
단 방향 DC Motors Control 회로 (High Cur-rent MOSFET) 예
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KyungHee Univ. 2-14
Isolated 단 방향 DC Motors Control 회로 예
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KyungHee Univ. 2-15
Isolated 단 방향 DC Motors Control 회로(High Current MOSFET) 예
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KyungHee Univ. 2-16
Isolated 단 방향 DC Motors Control 회로(High Current MOSFET) 예
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KyungHee Univ. 2-17
양 방향 H-Bridge DC Motors Control 회로 예
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KyungHee Univ. 2-18
Isolated 양 방향 H-Bridge DC Motors Con-trol 회로 예
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Dual Full-Bridge Driver L298
High voltage : 46Vhigh current : 4ADual full-bridge driverAccept standard TTL logic levelsDrive inductive loads such as • Relays, Solenoids, DC and, Stepping motors
KyungHee Univ. 2-19
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L289 Block Diagram
KyungHee Univ. 2-20
M M
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KyungHee Univ.
L298 을 이용한 DC Motor and Stepper Controller
Current Motor Supply Logic CurrentSensing Voltage Enable Supply Enable Sensing A Out Out Vs In A In GND Vs In B In Out Out B 1 2 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 2 3 4 5 6 GND Dir1 En1 Dir2 En2 Vcc In Put Control Signal Connector
+Vout 1Motor 1-Vout1
+Vout 2Motor 2-Vout2
VsSupplyVoltageGND
+-
470uF35V
104
1+
1+
2
4
3 3
4
2
Vs2W062W06
L298N
274141
474143
VsSupplyVoltageGND
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KyungHee Univ. 2-22
Solid-State Relay(Triac)
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KyungHee Univ. 2-23
Stepper Motors
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KyungHee Univ. 2-24
Stepper Motors Interfacing 예
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KyungHee Univ. 2-25
Stepper motor control sequence 예
PORTBOutput
A A’ B B’
10 Activate Deacti-vate
Activate Deacti-vate
9 Activate Deacti-vate
Deacti-vate
Activate
5 Deacti-vate
Activate Deacti-vate
Activate
6 Deacti-vate
Activate Activate Deacti-vate
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KyungHee Univ. 2-26
Double Circular Linked List 를 이용한 Stepper Motors 제어 Data Structure
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KyungHee Univ. 2-27
L293 Driver 를 이용한 Stepper Motor Interface 예