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Batteries and DC Power Supplies

Batteries and DC Power Supplies. Batteries. Battery Capacity – a measure of how long the battery will last at a given output current, measured in ampere-hours (Ah) Example: If a battery has 1 Ah rating, then,

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Batteries and DC Power Supplies

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  1. Batteries and DC Power Supplies EGR 101

  2. Batteries EGR 101

  3. Battery Capacity – a measure of how long the battery will last at a given output current, measured in ampere-hours (Ah) Example:If a battery has 1 Ah rating, then, -1 A discharge rate: battery will last 1 hour-100 mA discharge rate: battery will last 10 hours- 4 A discharge rate: battery will last 15 minutes EGR 101

  4. Series – Connected Batteries EGR 101

  5. Parallel – Connected Batteries EGR 101

  6. Types of Batteries • (Primary Cells) – cannot be recharged • Carbon-zinc • Alkaline • Silver-oxide • Zinc-air • Lithium • Common Batteries • (Secondary Cell) – can be recharged • Lead-acid • Nickel-Cadmium (Ni-Cd) • Nickel Metal Hydride and Lithium Ion – newer replacements for Ni-Cds EGR 101

  7. DC Power Supplies DC Power Supply a piece of equipment with dc outputs that can be adjusted to provide any voltage within its supply limits EGR 101

  8. DC Output Voltages EGR 101

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