Voltage Converter Power
Choosing the right power supply DC for your application
The Food DC is a little basic electronics, but there are hundreds of DC power products on the market of ten manufacturers. Reduce the number of best product for your application and budget can be a daunting task. This article addresses DC Power Supply differentiators, functions and applications they are most suitable. focus of the article is DC power used by engineers, manufacturers, professionals and amateurs quality e for R & D, manufacturing and testing.
Power can range in price from $ 50 to $ 20,000 and the cost is often directly proportional to the amount of energy output device. The primary function of a power supply is to regulate the output voltage and current. It has an input power and regulates output power to apply a constant voltage and current. In the case of DC Power Supplies, power input is converted to alternating current (AC) to direct current (DC). There are two basic types of regulated DC power supplies: linear and switching.
Linear power can never output a higher voltage than the input source. In theory, a linear power supply which is driven by conventional 110V 110V outlet might as output, assuming that the device was 100% effective. In reality, no power is 100% effective, because the energy conversion always results in energy loss, usually in the form of heat dissipation. Therefore, the linear output voltage power supplies in general which is well below the entry.
Power supplies can step-up step-down or reverse the input voltage. SMPS are generally larger, noisier and more expensive than their counterparts linear, however, power supplies are generally more effective.
Choosing the right power supply DC for your application requires the definition of some basic design specifications: voltage range, current range, the number of exits, clean power (known as "training") and programmability. In general, the higher the output voltage and the bottom of the wave, the most expensive of the DC power supply. Multiple outputs and programmability features will also add cost.
The least expensive DC power supplies are ideal for electronics enthusiasts and applications of basic electro-mechanical systems where only the raw power is needed. It is likely that the devices powering these applications have already power characteristics of packaging that eliminates the need for an input power of precision. Low power, single output, DC power supplies range in price from $ 50 to $ 200.
mid-range power supplies are best suited for non-critical projects in laboratories with on more advanced applications of electro-mechanical or baseline testing at board level. Midrange power can have multiple outputs, high power, Low ripple and precision digital measurement (+ / – 0.001 V, + / – 0.01 A). power midrange DC supplies can be linear or switching and could range in price from $ 200 to $ 1,000.
high-end applications requiring high output voltage, advanced programming (GPIB PC Hardware), many outputs and very low ripple should budget more than $ 1,000 for food in DC. Many laboratory, R & D and applications test could easily spend $ 5,000 to $ 10,000 in food.
This article has presented some basic characteristics and applications DC Power Supplies. Before making your final purchase, be sure to consult the manufacturer and understand all the specifications of a particular product. Choose the best and most economical DC Power for your application should not be a complex and lengthy task. By identifying the parameters of your design, you'll quickly you refine the selection of niche products to a category of products from only a few manufacturers.
About the Author
Robert Preville is the President and CEO of Global Test Supply, LLC, a distributor of test and measurement equipment, and welcomes question from those looking for a DC Power Supply
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