July 05, 2009

LED Tourch using max660

9:34 PM  Sabarish  No comments

Description.
This is a simple LED torch circuit based on IC MAX660 from MAXIM semiconductors. The MAX 660 is a CMOS type monolithic type voltage converter IC. The IC can easily drive three extra bright white LEDs.The LEDs are connected in parallel to the output pin 8 of the IC. The circuit has good battery life. The switch S1 can be a push to ON switch.

Circuit diagram with Parts list


NOTE : Click the image for better Quality

Notes.

  • Assemble the circuit on a general purpose PCB.
  • The IC must be mounted on a holder.
  • The circuit can be powered from two torch cells connected in series.
  • The capacitors C1 and C2 must be Tantalum type.
  • The diodes D1 to D3 must be of 1N4148.

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Electronics is the study and use of electrical that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves. and semiconductors. The pure study of such devices is considered as a branch of physics, while the design and construction electronic circuits to solve practical problems is called electronic engineering.

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