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electrical:inverter [2024/04/05 19:25] frater_secessus [overvoltage and undervoltage] |
electrical:inverter [2024/04/20 22:18] (current) frater_secessus [efficiency] |
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It is **more efficient to use DC power directly** whenever possible. In particular it is more efficient than running a laptop of phone charger off an inverter.((http:// | It is **more efficient to use DC power directly** whenever possible. In particular it is more efficient than running a laptop of phone charger off an inverter.((http:// | ||
- | AC-only items will require an inverter. | + | Note: **only AC loads will require an inverter**. [[electrical: |
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===== efficiency ===== | ===== efficiency ===== | ||
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Inverting from DC to your local shore power spec will necessarily incur losses. | Inverting from DC to your local shore power spec will necessarily incur losses. | ||
- | 50w * 0.8 efficiency = 60w demanded from the system | + | 50w / 0.8 efficiency = 60w demanded from the system |
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==== special case: tiny loads ==== | ==== special case: tiny loads ==== | ||
+ | [[https:// | ||
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+ | For ~120w loads you can use [[https:// | ||
- | For ~120w loads you can use a small inverter | + | Note: Ciggy ports are already prone to failure and poor connections. |
- | If you go this route, consider using [[https:// | + | In any case, find out what kind of fuse your ciggy port uses and have some on hand. |
==== estimating your needs ==== | ==== estimating your needs ==== | ||
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===== sharing power ===== | ===== sharing power ===== | ||
- | Because higher voltage power has less losses over long wires, it may be most efficient to share power between RVs as 120v. The donor vehicle would invert to 120v, plug in an extension cord to their inverter and run it to the recipient. | + | Because higher voltage power has less losses over long wires, it may be most efficient to share power between RVs as 120v. The donor vehicle would invert to 120v, plug in an extension cord((outdoor rated and approprate gauge)) |
===== differences from shore power 120vac ===== | ===== differences from shore power 120vac ===== |