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12 Volt & 110 Volt
Converters,  Inverters, Adapters & Battery Chargers
Whether you're traveling in the car, or at home, we have the products to invert and convert just about any voltage. Adapters convert the plug type and voltage for battery operated products. Converters switch power from 110 volts to both up and down conversion. Inverters change your cars 12 volt power into 110 volt so you can power any type of household product.



Turn 12 Volts Into 120 Volts
Single Plug 80 Watt Cigarette Lighter Inverter

Turn 12 Volts Into 120 Volts

(2) Plug 400 Watt Inverter
800 Watt Max.

 

Turn 12 Volts Into 120 Volts

(2) Plug 750 Watt Inverter

1500 Watt Max.

 
 

100 Watt DC to AC Inverter

 

 

AC to DC Inverter

 
 

Cigarette Lighter DC to

AC 80 Watt Power Inverter
B41-1754

 

 

DC to AC 400 Watt
Power Inverter

B41-1751

 

 

DC AC 750 Watt
Power Inverter

B41-1753

 

 

Turn 12 Volts Into 120 Volts
Double Plug 200 Watt Inverter
400 Watt Max



 

Turn 12 Volts Into 120 Volts
Single Plug 80 Watt Cigarette Lighter Inverter


 

 

Coleman® 400 Amp Inverter

Converts 12 Volts Into 120 Volts
Single Plug 400 With Cigarette Lighter Inverter

 

 
 

200 watt inverter DC to AC

 

 

Coleman 12 Volt inverter with cigarette lighter adapter

 
 


Cigarette Lighter DC to AC 200 Watt Power Inverter

B41-1757

 

 


DC to AC 80 Watt Inverter With Cigarette Lighter Cord

B41-1758

 

 

Colemale 400 Watt Inverter
 "Brand Name - Brand Quality"

B41-1756

 

 

Turn 120 Volts
 Into 12, 9 ,6, or 3 Volts

 

Turn Car 12 Volts Into
9, 6 or 3 Volts

 

Coleman®

400 Amp Jump Starter

Converts 12 Volts Into 120 Volts
Single Plug 400 With Cigarette Lighter Inverter

 
 

 

12 Volt DC to DC Adapter

 

Coleman 12 Volt inverter with cigarette lighter adapter

 
 

120 Volt
Converter Adapter

B41-1745

 

 

12 Volt DC to DC
Adapter 2000 mA

B41-1750

 

 

Colemale 400 Watt Inverter
 "Brand Name - Brand Quality"

B41-1756

 

 

Turn 120 Volts
 Into 12, 9 ,6, or 3 Volts

 

Turn Car 12 Volts Into
9, 6 or 3 Volts

 

Stanley®

450 Amp Jump Starter

 
 

1000 mA Universal AC/DC Adapter

 

viable DC to AC adapter 500 mA

 


 
 

120 Volt
Converter Adapter

B41-1745

 

 

500 mA Variable Output
12 Volt DC to DC Adapter

B41-1750

 

 

Stanley 450 Amp Jump Starter
 "Brand Name - Brand Quality"

B41-1755

 

 


"Portable Power"

Cell Phone & IPOD Charger Powers Any 12 Volt Device

 


Rapid AA AAA Battery
Charger
Pack

 


Digital NiMh AA
Battery Charger

 
 

 

 

 
 

12 Volt Power Pack
Car & USB Adapters

B41-1824

 

Rapid AA & AAA

Battery Charger
B41-1404

 

Digital AA
NiMh Battery Charger

B41-1403

 
 

How AC/ DC power supplies work

In the past mains electricity was supplied as DC in some regions, AC in others. Simple, cheap, linear power supplies running directly from either AC or DC mains, often without a transformer used. They used a rectifier and capacitor filter; the rectifier was essentially a conductor, having no sudden effect when operating from DC.

A computers switched mode power supply unit.A switched-mode power supply (SMPS) works on a different principle. AC mains input is directly rectified without the use of a transformer, to obtain a DC voltage. This voltage is then sliced into small pieces by a high-speed electronic switch. The size of these slices grows larger as power output requirements increase.

The input power slicing occurs at a very high speed (typically 10 kHz — 1 MHz). High frequency and high voltages in this first stage permit much smaller step down transformers than are in a linear power supply. After the transformer secondary, the AC is again rectified to DC. To keep output voltage constant, the power supply needs a sophisticated feedback controller to monitor current draw by the load.

Modern switched-mode power supplies often include additional safety features such as the crowbar circuit to help protect the device and the user from harm.[1] In the event that an abnormal high current power draw is detected, the switched-mode supply can assume this is a direct short and will shut itself down before damage is done. For decades PC computer power supplies have also provided a power good signal to the motherboard which prevents operation when abnormal supply voltages are present.

Switched mode power supplies have an absolute limit on their minimum current output. [2] They are only able to output above a certain wattage and cannot function below that point. In a no-load condition the frequency of the power slicing circuit increases to great speed, causing the isolation transformer to act as a tesla coil, causing damage due to the resulting very high voltage power spikes. Switched-mode supplies with protection circuits may briefly turn on but then shut down when no load has been detected. A very small low-wattage dummy load such as a ceramic power resistor or 10 watt light bulb can be attached to the supply to allow it to run with no primary load attached.

Power factor has become a recent issue of concern for computer manufacturers. Switched mode power supplies have traditionally been a source of power line harmonics and have a very poor power factor. Many computer power supplies built in the last few years now include power factor correction built right into the switched-mode supply, and may advertise the fact that they offer 1.0 power factor.

By slicing up the sinousoidal AC wave into very small discrete pieces, the portion of the AC current not used stays in the power line as very small spikes of power that cannot be utilized by AC motors and results in waste heating of power line transformers. Hundreds of switched mode power supplies in a building can result in poor power quality for other customers surrounding that building, and high electric bills for the company if they are billed according to their power factor in addition to the kilowatts used. Filtering capacitor banks may be needed on the building power mains to suppress and absorb these negative power factor effects.

Uninterruptible power supply
Main article: Uninterruptible power supply
An Uninterruptible Power Supply (UPS) takes its power from two or more sources simultaneously. It is usually powered directly from the AC mains, while simultaneously charging a storage battery. Should there be a dropout or failure of the mains, the battery instantly takes over so that the load never experiences an interruption. Such a scheme can supply power as long as the battery charge suffices, e.g., in a computer installation, giving the operator sufficient time to effect an orderly system shutdown without loss of data. Other UPS schemes may use an internal combustion engine or turbine to continuously supply power to a system in parallel with power coming from the AC mains. The engine-driven generators would normally be idling, but could come to full power in a matter of a few seconds in order to keep vital equipment running without interruption. Such a scheme might be found in hospitals or telephone central offices.

 
 

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