自行车回安全光栅电路-BicyclebackSafetyLight

自行车回安全光栅电路-Bycle back Safety Light
  Flashing 13 LED unit, 3V supply
  Also suitable for jogger/walkers
  
  Parts:
  R1_____________10K 1/4W Resistor
  R2,R9,R10_____100K 1/4W Resistors
  R3-R8,R11-R16__10R 1/4W Resistors
  R17___________150R 1/4W Resistor
  C1______________1?F63V Polyester Capacitor
  C2_____________10nF63V Polyester Capacitor
  C3____________100?F25V Electrolytic Capacitor
  D1-D13_____Red LEDs5mm. or bigger, high efficiency
  IC1,IC2________7555or TS555CN CMos Timer IC
  SW1____________SPSTSlider Switch
  B1_______________3VBattery (2 AA 1.5V Cells in series)
  Device purpose:
  This circuit has been designed to provide a clearly visible light, formed by 13 high efficiency flashing LEDs arranged in a pseudo-rotating order. Due to low voltage, low drain battery operation and small size, the device is suitable for mounting border=0>
  Notes:
  Flashing frequency can be varied changing C1 value.
  High efficiency LEDs are essential.