Economical, Compact Switching DC Power Supply with USB Charging Port Provides 1–36 V, 0-3 A Output

YORBA LINDA, CA, August 11, 2008 -- B&K Precision Corporation’s model 1550 Switching DC Power Supply is a compact 108 Watt DC power supply delivering 1-36 V and 0-3 A to its main isolated output. Operating as a constant voltage source or as a constant current source, automatic crossover to either mode of operation occurs when the load condition changes. The unique front panel mounted USB 1.1 charging port permits the user to conveniently charge a cell phone or MP3 player.

Priced at a low $139.00 and measuring a compact 2.8” (w) x 6.0” (H) x 9.8” (D),  the  1550's clean power and quiet operation makes it an ideal power supply for use in offices, laboratories, work shops, and schools where bench space is limited.

Features include:

  • USB charging port on front panel*
  • Rear panel security loop
  • Compact design
  • Output ON/OFF control
  • Large, bright, easy-to-read display
  • Constant voltage and constant current operation
  • Over-voltage protection
  • Over-temperature protection

* USB 1.1 charging port will not charge products compliant with USB 2.0 only

The model 1550 Switching DC Power Supply with USB charger port is a micro-controller-based DC power supply with USB charger output, constant current operation, over-voltage protection, floating (isolated-from-ground) output terminals, and an output on/off push button. By using the digital plus/minus (+/-) key control on the front panel, the user can easily set the output voltage and current. 

The USB output is rated at 5 VDC and 0.4 A in accordance with the USB 1.1 standard. The user can power up or charge portables such as iPods, MP3 players, or cell phones, rather than having to charge the device by connecting it to a computer’s USB port.

The power supply is designed to operate as a constant voltage source as long as othe load current is less than the preset current-limiting value. When the load current is equal to or greater than the preset current-limiting value, the power supply will automatically cross over to the constant current mode and the voltage will drop. When the current drops below the preset current-limiting value, the supply returns to constant voltage mode.

Priced at $139.00, the model 1550 is available for immediate delivery and comes complete with line cord, user manual, and B+K Precision’s one year warranty.

About B&K Precision
For more than 60 years, B&K Precision Corporation has been building a reputation for excellence in the design and manufacture of reliable and cost-effective test and measurement instruments. The company’s products are used in a wide range of applications including design, research and development, production line testing, industrial maintenance, and electronic field service. B&K Precision test and measurement instruments are standard equipment in a large number of universities and technical schools which train future engineers and technicians. B&K Precision was founded in 1951 and is headquartered in Yorba Linda, California.

James Schada
[email protected]
(714) 921-9095