Ideas for Design: Vol. 1, No. 3 (.PDF Download)

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This round of Ideas for Design articles includes a direction-signal encoder, a spreadsheet for calculating 5% resistor values, an auto power conditioner without a power-hold relay, and a safe method for connecting transformless supplies.

• Single-chip Circuit Delivers Direction
• Excel Formula Calculates Standard 5% Resistor Value
• Automotive Power-Conditioning
• Simple Strategy Safely Connects Transformerless-Supply Cicuits