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HOW2POWER ARTICLES — 2008


    December
  • DC-DC Converter Theory (A Vicor Power Techtorial)
  • Improving Output Filtering (A Vicor Power Techtorial)
  • Input Overvoltage Protection (A Vicor Power Techtorial)
  • EMI Filtering -- How to Get the Lowest Noise (A Vicor Power Techtorial)
  • An Efficiency Primer for Switch-Mode, DC-DC Converter Power Supplies
  • Tame Switching Supply Noise While Maintaining Efficiency
  • Voltage vs. Current Mode Control Current Sharing in a PolyPhase DC/DC Converter
  • Minimize Losses in Solar Panels, Rectifier technology maximizes efficiency
      • November
  • Using Copper Traces As Ballast Resistors Ensures Balance
  • Simple Battery Monitor Works With Higher Battery Voltages
  • Power Tips #5: Buck-boost design uses a buck controller
      • October
  • Greener' Rectifier Loses The Diodes, Adds Power MOSFETs, Efficiency
  • Power Supply Magnetic Fields
  • Take-Back-Half' Convergence Algorithm Stabilizes Microhydro Turbine Controller
  • Add Coordinated Overcurrent, Overvoltage Protection To PoE Equipment
  • Triple-Output LED Driver Works With Common-Anode LED Strings
  • Direct Paralleling, High Power Density LDO
  • Low Noise, High Voltage DC/DC Converters
  • Silicon Carbide Diodes Make Solar Power Systems More Efficient
      • September
  • Simple PWM Modulator Allows DC Control Signal To Drive LEDs
  • Simple Ambient Light Sensor Controls White LED Driver
  • COT Drivers Control LED Ripple Current
  • Shunt regulator monitors battery voltage
  • Logic Gates Added To LED Driver Create Camera Privacy Flash Warning
  • Over-Temperature Alarm Circuit Uses Common, Inexpensive Components
  • Power Semiconductor Manufacturer Introduces GaN-Based Power Device Technology
  • High Efficiency, Low Cost, Non-Isolated 350 mA, 12 V LED Driver
  • Triple LED Driver in 4mm × 5mm QFN Supports LCD Backlights in Buck, Boost or Buck-Boost Modes and Delivers 3000:1 PWM Dimming Ratio
  • Driver ICs Light the Way For LED Headlights
      • August
  • Build your own laboratory precision voltage source
  • Selecting the right dc/dc converter for portable apps
  • Choose Your IGBTs Correctly for Solar Inverter Applications
      • July
  • Add On-Board Power Measurement Capability To Telecom Equipment
  • Nanophosphate Batteries Create High-Energy, Rechargeable Source
  • Use A Boost Converter To Create An Auto-Dimmable LED Flashlight
  • Tester cycles system-power supplies
  • FCC Part 15 - Radio Frequency Devices
  • Automotive Cold Cranking Design Considerations
  • Inverter Design Shines in Photovoltaic Systems
  • Minimize Winding Losses in High-Frequency Inductors
  • No Heatsink Needed for 200-W Buck-Boost Supply
      • June
  • Trick A BJT-Based Converter Into Starting At Only 250 mV DC
  • Adapt DC Voltage To Perform PWM DImming Of High-Brightness LEDs
  • Switch Tricks Electronic Ballast ICs Into Working On Low Voltages
  • Maintain Power-Conversion Efficiency While Saving PCB Space
  • Programmable current source requires no power supply
  • Resonant LCC 90 W notebook power adapter based on the L6599 and STP12NM50N
  • High Efficiency 7.6 V, 700 mA Isolated LED Driver
  • PFC Circuit Halts Inrush Currents
      • May
  • Use PWM To Maintain Motor Speed And Phase While Eliminating Loop Filter
  • Small capacitor supports telecom power supply during brownouts
  • Intelligent NiCd Charger Avoids Battery Damage From High Currents
  • Connecting DC-DC Converters in a Series to obtain various output voltages
  • Low Component Count, Isolated 350 mA, 4.2 W LED Driver
  • Versatile TFT LCD Bias Supply and White LED Driver in a 4mm x 4mm QFN
  • Boosting Efficiency in Off-Line Power Converters
  • Battery Emulation Circuit Speeds Charger Testing
  • Don't Be Misled by Power Device Specs
      • April
  • Designing a SEPIC Converter
  • Unconventional Use Of An Output Driver Protects Current Monitor
  • Fast Load Transient Tester Circuit Features Adjustable Slew Rate
  • 75 W Output, High Efficiency, Single Stage Flyback Power Supply With PFC for LED Ballasts
  • An alternate way of driving LEDs
      • March
  • Precision voltage-controlled current sink tests power supplies
  • Harvest energy using a piezoelectric buzzer
  • Retriggerable monostable multivibrator quickly discharges power-supply capacitor
  • Snubber Circuits for Power Electronics with Rudy Severns
  • Snubber Measurement
  • Add Fail-Safe Shoot-Through Protection To Power MOSFET
  • Switches and Snubbers
  • Understanding Li+ Battery Operation Lessens Charging Safety Concerns
  • Low Cost Dimmable LED Ballast Using the Valley Fill Current Shaping Circuit
  • Interleaving Brings PFC to New Heights
      • February
  • Use 'Extra' LED Driver Channel To Provide Constant-Voltage Source
  • Snubber Analysis with Rudy Severns
  • Single-supply circuit measures -48V high-side current
  • Inexpensive MCU Replaces Dedicated Backup-Power Controller
  • Use Bootstrap Cell Circuits To Generate Multiple Voltages
  • An introduction to LLC resonant half-bridge converter
  • Energy Recovery Snubbers with Rudy Severns
  • Isolated supply powers DVM module
  • RCL Diode Snubbers with Rudy Severns
  • 14 W, LED Driver Power Supply With High Efficiency
  • High Efficiency Constant Current Buck Converter for LED Lighting
  • 20 W Single Stage Flyback Power Supply With PFC for LED Ballasts
  • Bridgeless PFC Boosts Low-Line Efficiency
  • Understanding the Noise Issue Out of Inductor Based DC-DC Converter
      • January
  • Automotive switching regulators get input-transient-voltage protection
  • RC Snubber Networks with Rudy Severns
  • Depletion-mode MOSFET kick-starts power supply
  • Capacitor Ripple Current Improvements
  • LED Driver for Halogen Light Bulb Retrofit
  • 0.5 W Non-Isolated Constant Current LED Driver
  • 1.25 W Non-Isolated Constant Current LED Driver
  • NXP AC/DC converter for LED luminaires---A bright idea for dimmable LED luminaires
  • Expedite Transformer Calculations for Flybacks
  • SWITCHING MODE POWER SUPPLY (SMPS) TOPOLOGIES OVERVIEW, COMPARISON AND SELECTION GUIDE
  • How Transformers, Chokes and Inductors Work, and Properties of Magnetics

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