Elektor April 2007

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Table of Contents Elektor April 2007

• A Simple Mains Inverter
  12 VDC in, 230 VAC out
• Adjustable high-voltage power supply (1961)
  retronics
• Charger for NiMH/NiCd and LiPo/Li-Ion packs and cells
  Battery Charge-n-Check
• E-blocks Light Chaser Squared
  Let’s complicate things!
• Explorer-16 (4)
  Part 4 (final): beefing up the speaking thermometer
• Free Poster: Solar Cells from Fruit Tea
  Make your own dye-sensitized solar cells
• Hexadoku April 2007
  Puzzle with an electronic touch
• High power nanophosphate batteries under test
  Tough and powerful
• Mailbox April 2007
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• Miniature Rotating Magnetic Field Generator
  PC fan analysed
• Mobile phone LCD With Slide Show
  Electronic badge
• Programmer for Freescale 68HC(9)08
  First steps in 8-bit development
• Simple standalone power plants
  Solar Power for Dummies
• Solar Cell Charger (Mini Project)
  Avoids overcharging of NiCad batteries
• The Human Body as an Energy Source
  New technologies for generating energy
• The quest for the holy grail of free energy
  Message in a Bottle
• Two-axis 2g accelerometer with SpYder and a Freescale micro
  g-Force on LEDs
• Very Simple Clock
  Reworking a Design from 1971