V Instruments

STUDY OF DC BUCK BOOST CONVERTER

This set up is designed to study the  BUCK (Step down)  & Boost Type DC-DC Converter circuits. This set up consists of

  1. PWM Controller
  2. MOSFET Power circuit
  3. DC Power supply.

PWM Controller:

  • One number of TL494 IC Based PWM controller for converter power circuits
  • Potentiometer is provided to vary the PWM Duty cycle ratio
  • Potentiometer is provided to vary the PWM Frequency
  • Necessary test points are provided to study the PWM Controller
  • PWM output is terminated in connector for MOSFET power circuit patching

MOSFET Power circuit:

  • One number of IRF250 Power MOSFET with proper heat sink is provided for power circuit
  • Separate power circuit for Buck & Boost converter
  • One number of High Frequency Inductor and output filter is provided
  • One number of Fixed Load resistor is provided
  • PWM ISOLATOR IC and DRIVER ICs are provided for MOSFET power circuits PWM amplifications
  • Necessary test points & PWM input connector are provided
  • Specifications
  • Buck Converter
    • Power circuit Inputs :           5-20VDC
    • Output             :           5VDC @ 1A
  • Boost Converter
    • Power circuit Inputs :           10-15VDC
    • Output             :           20VDC @ 0.5A
  • One number of Fixed dc power supply is provided for power circuit inputs