Wednesday, 12 September 2012

FYP II Week 4: H Bridge (LM293)

Concept of H-bridge

An H bridge is an electronic circuit that enables a voltage to be applied across a load in either direction. These circuits are often used in robotics and other applications to allow DC motors to run forwards and backwards. H bridges are available as integrated circuit, or can be built from discrete component.

 
H-bridge by using transistor

FYP II Week 2 - 3: LDR circiut (sensor)

LDR circuit already construct on breadboard

  Sensor circuit diagram

 Simulation on bright condition

 Simulation on dark condition


FYP II Week 1: 12v or 9V to 6V Converter Circiut

12v or 9V to 6V Converter Circiut


 converter circuit diagram

Simulation of constructed converter circuit

This circuit is use to convert 12V from battery of solar panel to 6V. The voltage needed to be converted because of the requirement of Servo Motor and sensor circuit. In picture above it already constructed and it being tested by using simulation on Proteus software and the result show that this circuit will practically function well on real world.
component in this circuit is:-

  • 330nF-1
  • LM7806(with heat sink)-1
  • 100nF-1