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university:courses:electronics:buck_converter_basics [10 May 2019 20:12] – wording Mark Thorenuniversity:courses:electronics:buck_converter_basics [10 May 2019 20:16] – add round download box [Slide Deck] Mark Thoren
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 Copy this Arduino sketch into your Arduino sketchbook (and restart the Arduino IDE if it's open.) Copy this Arduino sketch into your Arduino sketchbook (and restart the Arduino IDE if it's open.)
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   * Arduino Sketch: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/Linduino/tree/master/LTSketchbook/Active%20Learning/LT1054_voltage_mode_buck_DC_ctrl | LT1054 closed loop buck with duty cycle control]]   * Arduino Sketch: [[ https://minhaskamal.github.io/DownGit/#/home?url=https://github.com/analogdevicesinc/Linduino/tree/master/LTSketchbook/Active%20Learning/LT1054_voltage_mode_buck_DC_ctrl | LT1054 closed loop buck with duty cycle control]]
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 The following figure shows the operation of the closed-loop circuit. The setpoint voltage is 3.141V, and the purple trace starts out close to this value at the lefthand side of the Scopyshot. A 50 ohm load is then connected to the output, drawing approximately 120mA, and producing a dip in the output voltage. The Arduino loop detects this and increases the PWM frequency accordingly, restoring the voltage to its correct value. Then the resistor is removed, producing an increase in the output voltage. Once again, the Arduino loop detects this disturbance and compensates. The following figure shows the operation of the closed-loop circuit. The setpoint voltage is 3.141V, and the purple trace starts out close to this value at the lefthand side of the Scopyshot. A 50 ohm load is then connected to the output, drawing approximately 120mA, and producing a dip in the output voltage. The Arduino loop detects this and increases the PWM frequency accordingly, restoring the voltage to its correct value. Then the resistor is removed, producing an increase in the output voltage. Once again, the Arduino loop detects this disturbance and compensates.
  
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 ===== Slide Deck ===== ===== Slide Deck =====
 A slide deck is provided as a companion to this exercise, and can be used to help in presenting this material in classroom, lab setting, or in hands-on workshops. A slide deck is provided as a companion to this exercise, and can be used to help in presenting this material in classroom, lab setting, or in hands-on workshops.
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 {{ :university:courses:electronics:buck_basics:workshop_buck_converter_basics.pptx | Buck Converter Basics Slide Deck}} {{ :university:courses:electronics:buck_basics:workshop_buck_converter_basics.pptx | Buck Converter Basics Slide Deck}}
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 **Return to Lab Activity [[university:courses:electronics:labs|Table of Contents]]** **Return to Lab Activity [[university:courses:electronics:labs|Table of Contents]]**
  
university/courses/electronics/buck_converter_basics.txt · Last modified: 05 Feb 2024 20:30 by Mark Thoren