Power Supply Without Stress, Volume 2

Table of Contents

• Foreword

• Chapter 1: Measurements on Voltage and Current Sources

  • Accuracy

  • 1.1 Practical Measurements on Voltage Sources

    • 1.1.1 Measurements on a Plug-in Power Supply

      • 1.1.1.1 Intermezzo: Electronic Load

    • 1.1.2 Measurements on a Battery

  • 1.2 Practical Measurement on Current Sources

  • 1.3 Safety

• Chapter 2: Mobile Voltage and Current Sources

  • 2.1 Battery Voltage Source for Sensor Operation

  • 2.2 Battery Current Source for Sensor Operation

  • 2.3 Battery Voltage Monitoring

    • 2.3.1 Voltage Monitoring with Microcontroller

      • 2.3.1.1 Program Listing

    • 2.3.2 Voltage Monitoring with Comparators

  • 2.4 Battery Pack for Three Supply Voltages

  • 2.5 Mobile Lab Supply

    • 2.5.1 Improvement Possibilities

      • 2.5.1.1 "Pre-adjustment" with Tandem Potentiometer

      • 2.5.1.2 Tracking with Analog Feedback

      • 2.5.1.3 Control with Microcontroller

  • 2.6 Lighting Supplied Mobile

    • 2.6.1 Mobile Desk Lamp

    • 2.6.2 Battery-Powered Kitchen Lamp

  • 2.7 USB Supply in the Car

    • 2.7.1 USB Supply with Series Regulator

    • 2.7.2 USB Supply with Step-Down Converter

      • 2.7.2.1 Step-Down Converter without Special IC

        • 2.7.2.1.1 Output Voltage Monitoring

        • 2.7.2.1.2 Output Current Monitoring

        • 2.7.2.1.3 Output Short-Circuit Protection

        • 2.7.2.1.4 Temperature Monitoring

        • 2.7.2.1.5 Software

        • 2.7.2.1.6 Measured Values and Layout

  • 2.8 Providing "High" Voltages

    • 2.8.1 "High Voltage" Generation with Fixed Output Voltage

      • 2.8.1.1 Software

      • 2.8.1.2 Adaptation to Different Tasks

      • 2.8.1.3 Standard Regulator for High Output Voltage

    • 2.8.2 High-Voltage Generation (HV) with Adjustable Output Voltage

      • 2.8.2.1 Software

      • 2.8.2.2 Operation and Modifications

  • 2.9 Buck-Boost Converter

    • 2.9.1 Supply from Lithium-Ion Battery

• Chapter 3: Mains-Operated Power Supplies

  • 3.1 Mains Transformer and Smoothing

    • 3.1.1 Sizing the Mains Transformer

    • 3.1.2 Smoothing in a Different Way

      • 3.1.2.1 Smoothing with a Choke Coil

      • 3.1.2.2 Electronic Smoothing

  • 3.2 Fixed Voltage Power Supply with Linear Regulator

    • 3.2.1 Circuit Discussion

      • 3.2.1.1 Consideration of the Circuit for a Clean Output DC Voltage

      • 3.2.1.2 Consideration of Power Loss

  • 3.3 Controllable Rectifiers

    • 3.3.1 Microcontroller Software

  • 3.4 Inrush Current Limiter (ICL)

    • 3.4.1 Inrush Current Limiting with Thermistor

      • 3.4.1.1 Intermezzo: Saving the Last Incandescent Lamps with Thermistors

    • 3.4.2 Inrush Current Limiting with Current Limiting Resistor

      • 3.4.2.2 Safety Note

  • 3.5 PC-Controlled Lab Supply

    • 3.5.1 Software

  • 3.6 Microcontroller as Regulator

    • 3.6.1 Acquisition of Actual Values

      • 3.6.1.1 Output Current

      • 3.6.1.2 Output Voltage

      • 3.6.1.3 Setpoints for Voltage and Current

      • 3.6.1.4 Temperature of the Heat Sink

      • 3.6.1.5 Voltage at the Series Transistor

    • 3.6.2 The Microcontroller Program

  • 3.7 Power Supply Without Mains Isolation

    • 3.7.1 Practical Implementation for a Power Supply Without Mains Isolation

  • 3.8 Power Supply for Tube Circuits

    • 3.8.1 Smoothing Filter

    • 3.8.2 Regulator Circuit

• Chapter 4: Miscellaneous

  • 4.1 Programming the MSP430 Microcontroller

  • 4.2 Parallel Connection of Voltage Regulators

  • 4.3 Soft Start

  • 4.4 PCB Copper Areas for Component Cooling

    • 4.4.1 Investigation at the Aschaffenburg University of Applied Sciences

    • 4.4.2 Own Experiment

  • 4.5 Current Cutoff with Minimal Losses

  • 4.6 Artificial Ground

  • 4.7 Wireless Power Transfer

• Literature