Universal Power Supply
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Overview
A Universal Power Supply forms the backbone of an off-grid electrical system for powering machines and power electronic devices such as the induction furnace.
Updates
- See Universal_Power_Supply Requirement for 2019 version.
- Initial prototypes:
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Definition/Concept
This is a combination inverter, converter, pulse-width modulation current controller, and high frequency power supply for applications from off-grid power, charge controllers, to power supplies for welders, induction furnaces, and plasma cutters.
A large range of power electronic devices is desirable within the infrastructure of communities. Having an individual power supply for each is redundant and expensive. A modular UPS construction kit is desirable as an analogue to the 'industrial-strength Lego' that we have already demonstrated for heavy mechanical hardware infrastructures.
Rectifiers
Rectification is the conversion of AC to DC. A universal power supply would require one or two rectifying stages: one at the AC input to provide DC for the voltage converter, and another if the voltage converter is a proper Active PFC converter, which produces PWM shaped output.
Rectifiers can be either passive schottky diode bridges, or active (IC-controlled) MOSFET H-bridges. Passive ones are cheaper, and ultimately more efficient for very high currents, while active ones are superior for low-medium-and-maybe-high currents yet more expensive. This design choice affects price, producability and simplicity.
In either case a rectifier stage requires power packaged components and a heat sink. The size of the heat sink is a function of the current, which is higher at low voltages for a given output power. Questions for the specification is how much power the device should be able to deliver from a 12V source (first rectifier in the case of voltage up-conversion) and to a load at 12V DC output (second rectifier if present).
Voltage Converters
Inverters
An inverter is an electrical device that converts DC voltage from batteries to AC voltage for off-shelf electrical tools and appliances.
Off-the-shelf inverters have about a 2 year lifetime, and 5-10 year lifetime for higher quality models. Lifetime design inverters with plug-in replacement components are required for sustainable communities which use battery storage as a component of their electricity infrastructure. One of the few other feasible, non-battery, non-fuel energy storage may be via heat storage coupled to thermoelectric generators, or possibly thermal storage via phase-change salts and heat engines.
Product Ecology
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Components |
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Status
OSE is recruiting subject matter experts with experience in inverter design. Those with relevant experience are encouraged to Contact Us
Adjustable Power Supply v18.08 is in development
See Also
- Concept
- Inverter
- Electricity
- Charge Controller
- Problem Statement
- Power Electronics Construction Set
- http://preciodelorohoy.wordpress.com/ - Information about power supply
| [[Global Village Construction Set{{#if: Universal Power Supply|{{#ifexist:Global Village Construction Set/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: The Global Village Construction Set|The Global Village Construction Set|Global Village Construction Set}}]] | ||||||||||
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| Habitat | [[CEB_Press{{#if: Universal Power Supply|{{#ifexist:CEB_Press/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: CEB Press|CEB Press|CEB_Press}}]] | [[Cement Mixer{{#if: Universal Power Supply|{{#ifexist:Cement Mixer/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Cement Mixer}}]] | [[Sawmill{{#if: Universal Power Supply|{{#ifexist:Sawmill/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Sawmill}}]] | [[Bulldozer{{#if: Universal Power Supply|{{#ifexist:Bulldozer/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Bulldozer}}]] | [[Backhoe{{#if: Universal Power Supply|{{#ifexist:Backhoe/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Backhoe}}]] | |||||
| Agriculture | [[LifeTrac{{#if: Universal Power Supply|{{#ifexist:LifeTrac/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Tractor|Tractor|LifeTrac}}]] | Seeder | Hay Rake | [[Well-Drilling Rig{{#if: Universal Power Supply|{{#ifexist:Well-Drilling Rig/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Well-Drilling Rig}}]] | ||||||
| [[MicroTrac{{#if: Universal Power Supply|{{#ifexist:MicroTrac/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Microtractor|Microtractor|MicroTrac}}]] | [[Soil Pulverizer{{#if: Universal Power Supply|{{#ifexist:Soil Pulverizer/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Soil Pulverizer}}]] | [[Spader{{#if: Universal Power Supply|{{#ifexist:Spader/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Spader}}]] | Hay Cutter | Trencher | ||||||
| [[Bakery_Oven{{#if: Universal Power Supply|{{#ifexist:Bakery_Oven/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Bakery Oven|Bakery Oven|Bakery_Oven}}]] | Dairy Milker | [[Microcombine{{#if: Universal Power Supply|{{#ifexist:Microcombine/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Microcombine|Microcombine|Microcombine}}]] | [[Baler{{#if: Universal Power Supply|{{#ifexist:Baler/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Baler}}]] | |||||||
| Industry | [[Multimachine{{#if: Universal Power Supply|{{#ifexist:Multimachine/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Multimachine}}]] | [[Ironworker{{#if: Universal Power Supply|{{#ifexist:Ironworker/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Ironworker|Ironworker|Ironworker}}]] | Laser Cutter | Welder | [[Plasma Cutter{{#if: Universal Power Supply|{{#ifexist:Plasma Cutter/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Plasma Cutter|Plasma Cutter|Plasma Cutter}}]] | |||||
| CNC Torch Table | [[Metal Roller{{#if: Universal Power Supply|{{#ifexist:Metal Roller/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Metal Roller}}]] | Rod and Wire Mill | Press Forge | [[Universal Rotor{{#if: Universal Power Supply|{{#ifexist:Universal Rotor/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Universal Rotor}}]] | ||||||
| 3D Printer | [[3D Scanner{{#if: Universal Power Supply|{{#ifexist:3D Scanner/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|3D Scanner}}]] | [[CNC Circuit Mill{{#if: Universal Power Supply|{{#ifexist:CNC Circuit Mill/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|CNC Circuit Mill}}]] | Industrial Robot | [[Chipper Hammermill{{#if: Universal Power Supply|{{#ifexist:Chipper Hammermill/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Chipper Hammermill|Chipper Hammermill|Chipper Hammermill}}]] | ||||||
| [[Drill Press{{#if: Universal Power Supply|{{#ifexist:Drill Press/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Drill Press}}]] | [[Induction Furnace{{#if: Universal Power Supply|{{#ifexist:Induction Furnace/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Induction Furnace|Induction Furnace|Induction Furnace}}]] | |||||||||
| Energy | [[Power Cube{{#if: Universal Power Supply|{{#ifexist:Power Cube/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Power Cube}}]] | Gasifier Burner | Solar Concentrator | [[Electric Motor Generator{{#if: Universal Power Supply|{{#ifexist:Electric Motor Generator/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Electric Motor Generator|Electric Motor Generator|Electric Motor Generator}}]] | [[Hydraulic Motor{{#if: Universal Power Supply|{{#ifexist:Hydraulic Motor/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Hydraulic Motor}}]] | |||||
| Steam Engine | [[Heat Exchanger{{#if: Universal Power Supply|{{#ifexist:Heat Exchanger/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Heat Exchanger}}]] | [[Wind Turbine{{#if: Universal Power Supply|{{#ifexist:Wind Turbine/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Wind Turbine|Wind Turbine|Wind Turbine}}]] | Pelletizer | [[Universal Power Supply{{#if: Universal Power Supply|{{#ifexist:Universal Power Supply/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Universal Power Supply}}]] | ||||||
| [[Nickel-Iron Battery{{#if: Universal Power Supply|{{#ifexist:Nickel-Iron Battery/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: |{{{2}}}|Nickel-Iron Battery}}]] | ||||||||||
| Materials | [[Aluminum Extractor{{#if: Universal Power Supply|{{#ifexist:Aluminum Extractor/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Aluminum Extractor|Aluminum Extractor|Aluminum Extractor}}]] | Bioplastic Extruder | ||||||||
| Transportation | [[Open Source Car{{#if: Universal Power Supply|{{#ifexist:Open Source Car/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Car|Car|Open Source Car}}]] | [[Open Source Truck{{#if: Universal Power Supply|{{#ifexist:Open Source Truck/Universal Power Supply|/Universal Power Supply|}}|}}|{{#if: Truck|Truck|Open Source Truck}}]] | ||||||||
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| Key | Design | Planning | Prototype | Almost done | Full Release | |||||
