Power supplies provide steady, precisely controlled electrical energy to electronic equipment. Anyone who has built or worked with a desktop computer recognizes the power supply— typically the bulkiest component—sitting behind the electrical inlet socket.
Top 6 Questions You Should Ask When Specifying Power Management Solutions
1. What options are available and how will they affect the lab?
2. Will you need to do a complete overhaul each time you add a piece of equipment or are solutions flexible enough to allow for additional equipment?
3. How difficult is it to move or relocate plugs and receptacles if you need to adjust your layout?
4. Does the company’s product offer any level of sustainability?
5. What kind of product life can you expect from the company’s system? Is it durable enough to handle years of use or will it continually show wear? Can you count on the company’s team to provide service throughout the product’s life?
6. What kind of cost should you expect from the company’s system? Materials? Installation? On-going maintenance? Service? Warranty? Total cost of ownership?
Five Fast Facts on Power Supplies:
• Uninterruptible power supplies are rather uncommon in most labs, except for stand-alone computer equipment that might suffer from data loss. Academic and industrial research organizations usually have house backup generators for heavy equipment and instrumentation, and backups for both computer power and data.
• Switching power supplies use a switching generator to harness efficiencies when converting electrical energy from the grid’s AC to specific DC current and voltage requirements. Switching supplies work by rapidly turning on and off. Linear power supplies operate at constant, precisely controlled voltages.
• Switching power supplies are common as embedded supplies for personal computers because of their high efficiency and small footprint, but they tend to be electrically noisy and don’t regulate as well as linear power supplies.
• Stand-alone power supplies, including uninterruptible supplies, do make sense in non-electronics labs when a lot of equipment runs on the same voltage.
• Electrical/electronics lab power supplies come in three major types, depending on the work being done. Constant voltage supplies provide configurable DC voltage that is adjustable over a specific range that includes zero voltage. Constant current supplies output-regulated current independent of the voltage. Constant voltage/ constant current devices provide either voltage or current.
Recently Released Power Supply Products
• Scalable solution offers the ability to add or relocate plug-in modules, including standard plugs and datacom channels, anywhere
• Features a smooth aluminum finish and compact design that allows for quick installation
• Design allows users to simply snap any number of pre-assembled plug-in modules into place on the raceway backplane for an instant connection
RTR-505V Wireless Voltage Logger
• Measures DC voltages from 0 to 22VDC with accuracy of ±0.5mv
• Features a large LCD display and capacity for 16,000 readings
• Also boasts IP64 water resistance and up to 4 years battery life with the “L” version
• Compatible with all TandD RTR-500 Series Wireless Data Collectors
• Provides 10 to 100 kV adjustable output at power levels up to 200 kW
• Packaged in a 24”W x 36”D x 74”H cabinet and uses tap water for cooling
• Offers full over-voltage and over-current protection up to +30%
N6705B DC Power Analyzer
• Provides excellent productivity gains when sourcing and measuring DC voltage and current into a DUT
• Combines up to four advanced DC power supplies, DMM, oscilloscope, arbitrary waveform generator and datalogger
• Includes an easy-to-use interface, with all sourcing and measuring functions available from the front panel
Power Supply Manufacturers
|EMCO High Voltage||www.emcohighvoltage.com|
|Spellman High Voltage||www.spellmanhv.com|