Data Sheet Switching DC Power Supply with USB Charger Output 1-36 V, 0-3 A Specifications Model 1550 1550 MAIN OUTPUT Output Voltage Adjustable Range 1.0 - 36 VDC Output Current Adjustable Range 0-3A Voltage Regulation New touch pad design Load (10 % to 100 %) Line (min to max) 20 mV Ripple 5 mV rms Noise (Peak to Peak) 50 mV + V OUTPUT ON/OFF A _ 50 mV Current Regulation Load (10 % to 100 %) 20 mA Line (min to max) 20 mA USB OUTPUT The model 1550 is a compact 108 watt power supply delivering 1-36 V and 0-3 A from its main isolated output. A unique feature of the 1550 supply is the USB charging port located on the front panel allowing the user to charge a cell phone or MP3 player. Clean power and quiet operation make this power supply ideal for any bench in laboratories, work shops and schools where bench space is limited. Features: USB charging port on front panel Rear panel security loop Compact design Output On/Off control Large bright easy to read LCD display Constant voltage and constant current operation Overvoltage protection 230 VAC version with banana style outputs (model 1550-220V) Output Voltage 5 V (10 %) Output Current 400 mA (10 %) Load Voltage Regulation 80 mV (10 %) Ripple & Noise (no load rms) 8 mV (10 %) OTHER AC Input 100 - 120 Vac (50~60 Hz)* Efficiency at Max Power 83 % (10 %) Voltmeter and Ammeter Display 3 Digit Voltmeter Accuracy 1 % of rdg. 5 digits Switching Operation Frequency 80 kHz to 120 kHz Ammeter Accuracy 1 % of rdg. 5 digits Full Load Input Current at 120 Vac 1.8 A (10 %) LCD Indication CC, CV, Amp, Volt, Output ON-OFF GENERAL Protection Short Circuit, Overload, Over Temperature, Over Voltage Dimensions (W x H x D) 2.8" x 6.0" x 9.8" (70 x 150 x 250 mm) Weight 4.4 Lbs. (2 kgs) Supplied Accessories User manual and power cord One-Year Warranty USB C harging P ort Charge your cell phone or MP3 player while you work *For 230V input, order model number 1550-220V. Rear P anel Sec urit y Loop Secure the power supply to a work station to prevent unwanted removal Technical data subject to change (c) B&K Precision Corp. 2014 v040914 w w w.bk prec ision.c om