Building an IR Receiver Circuit with On-Off Operation: Is My Plan Correct?

  • Thread starter Thread starter a4111
  • Start date Start date
  • Tags Tags
    Circuit Work
Click For Summary
SUMMARY

The discussion focuses on building an infrared (IR) receiver circuit designed for on-off operation triggered by an IR emitter. The user plans to utilize an IR receiver that outputs high voltage when idle and low voltage upon detecting the specific IR frequency. The circuit incorporates a relay to reroute current to ground during high output and activate a switch when the output is low. A recommendation is made to use an NPN transistor in a common-emitter configuration for signal inversion, enhancing the circuit's functionality.

PREREQUISITES
  • Understanding of infrared (IR) communication principles
  • Knowledge of relay operation and configuration
  • Familiarity with NPN transistor characteristics and common-emitter configurations
  • Basic circuit design and analysis skills
NEXT STEPS
  • Research NPN transistor common-emitter configuration for signal inversion
  • Explore relay types and their specifications for IR applications
  • Learn about capacitor discharge circuits and their role in switch activation
  • Investigate troubleshooting techniques for IR receiver circuits
USEFUL FOR

Electronics hobbyists, circuit designers, and anyone interested in building and troubleshooting IR communication systems.

a4111
Messages
1
Reaction score
0
Im trying to build an IR receiver circuit that will perform a simple on-off operation when I push a button on an IR emitter. From what I understand IR receivers normally output high unless they detect their specific frequency, and then they output low. So my plan was to use the relay shown such that while the IR receiver sends high voltage the relay just reroutes the current to ground. When the IR receiver sends low voltage the relay switches up and the capacitor drains and activates/deactivates the switch. Does this all look right so far?

http://img222.imageshack.us/img222/292/circuitgx0.png
 
Last edited by a moderator:
Engineering news on Phys.org
Use an NPN transistor in a common-emitter configuration to do the signal inversion for you.
 

Similar threads

Solving Power Delivery Issues in a 5V Series Circuit with a 1.5V Rated Relay
  • · Replies 12 ·
Replies
12
Views
3K
Window fan: Bypassing thermostat with a button
  • · Replies 2 ·
Replies
2
Views
2K
Circuit Analysis of IR transmitter/receiver
  • · Replies 58 ·
2
Replies
58
Views
12K
Relay and Capacitor circuit - blinking LED
  • · Replies 26 ·
Replies
26
Views
7K
I'm trying to intuit how pull-up and pull-down resistors work
  • · Replies 33 ·
2
Replies
33
Views
5K
Heavy Amplifier Circuit Oscillation Happened
  • · Replies 3 ·
Replies
3
Views
3K
Is My LM311 Speaker Protection Circuit Designed Correctly?
  • · Replies 15 ·
Replies
15
Views
4K
Design of a CW multiplier circuit
  • · Replies 22 ·
Replies
22
Views
5K
IR Distance Sensor: Will this receiver work?
  • · Replies 1 ·
Replies
1
Views
2K
Adjustable sensitivity IR Light gate
  • · Replies 2 ·
Replies
2
Views
4K