atmega128 i o power control solid state switch relay n.
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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.

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Presentation Transcript
computer controlled current switches bjt transistors
Computer-Controlled Current SwitchesBJT Transistors
  • 전류 제어 Switch(BJT)
    • NPN Transistor Model
  • PNP Transistor Model
8 5 1 introduction to relays
8.5.1 Introduction to Relays
  • 제어회로와 다른 전원으로 구동하는 Relay의 예
electromagnetic relays basics
Electromagnetic Relays Basics
  • 여러 가지 Relay의 구조 예
  • Relay의 구조에 따른 Activation Sequence
interfacing em relays solenoids and dc motors
Interfacing EM Relays, Solenoids, and DC Motors
  • Current Sink 구조 예

Snubber diode

dual full bridge driver l298
Dual Full-Bridge Driver L298
  • High voltage : 46V
  • high current : 4A
  • Dual full-bridge driver
  • Accept standard TTL logic levels
  • Drive inductive loads such as
    • Relays, Solenoids, DC and, Stepping motors
slide21

L298을 이용한 DC Motor and Stepper Controller

L298N

Current Motor Supply Logic Current

Sensing 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

2

7414

1

4

7414

3

470uF

35V

+

-

+Vout 2

Motor 2

-Vout2

2

2

+Vout 1

Motor 1

-Vout1

1

+

1

+

4

4

Vs

Supply

Voltage

GND

2W06

2W06

Vs

Supply

Voltage

GND

Vs

3

3

104

1 2 3 4 5 6

GND Dir1 En1 Dir2 En2 Vcc

In Put Control Signal Connector