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Infrared Circuits
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IR Circuits: #-H
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Last Updated on:
Wednesday, November 29, 2017 05:40 AM
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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IR Heart Pulse Monitor : Reverse engineered circuit diagram of a pulse sensor
circuit board out of a treadmill. Notice that the output is level shifted for use by CMOS
logic running on 4.5V regulated down from the 6V battery. The CMOS logic also controlls
the power to the analog circuitry and infrared LED. I do not gaurantee the accuracy or
safety of any information herein.
(added 2/05) |
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IR Link #2: A basic Imfra Red Link for audio communication for distances upto 3
metres (added 6/03) |
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IR Link: (electronic circuit added 7/03) |
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IR Localtalk Link has Superior Range and Ambient Rejection: DN118 Design
Notes (Linear Technology) (app note added 1/06) |
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IR Modulation Detector: A circuit to extract and measure the modulated carrier
of an Infra Red remote control. Note that the circuit does not physically separate control
pulses from modulation, but amplifies the completereceived signal allowing the waveform to
be displayed ideally on an oscilloscope or a frequency counter. Modulation frequencies
between 1kHz and several MHz may be measured. (added 10/05 |
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IR Circuits:
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