Batteries and DC Power Supplies EGR 1011. Batteries 2EGR 101.

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Presentation transcript:

Batteries and DC Power Supplies EGR 1011

Batteries 2EGR 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

Series – Connected Batteries EGR 1014

Parallel – Connected Batteries EGR 1015

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

DC Power Supplies EGR 1017 DC Power Supply a piece of equipment with dc outputs that can be adjusted to provide any voltage within its supply limits

DC Output Voltages EGR 1018