Thursday, January 14, 2010

Infra Red Switch

 This is a single channel (on / off) universal switch that may be used with any Infra Red remote control that uses wavelengths between 850-950nm.

  • R1 3k3
  • R2 1k
  • R3 22k
  • R4 220k
  • R5 1M
  • R6 3k3
  • B1 12 V
  • D1 1N4148
  • D2 1N4003
  • Q1 B109
  • LED1 CQX35A
  • IC1 IR1 available from Harrison Electronics
  • IC2 4049
  • IC3 CA555
  • IC4 SN74HCT74
  • IC5 LM7805
  • Relay 12 Volt coil with changeover contact
  • C1 100u
  • C2 22u
  • C3 100n
  • C4 2u2

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