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This infrared receiver is used with this infrared transmitter. The output signal of D1 IR diode is amplified by IC1. The diode is BPW41N works great with the transmitter and is relatively fast (~200 ns). The impulses at IC1′s output are applied to IC2 (comparator) that separate them from ambient light. Check out the infrared alarm circuit too.
Use this infrared headphones receiver with the ir headphones transmitter.
Use 600Ω headphones. BPW41N and BP104 have a filter for visible light and are centered on 950nm at 250C. At normal light illumination and 3 to 4 meters distance the audio distorsion were 1 – 2%, wich is not bad for such a simple ir headphones receiver schematic
