User manual
17
www.bkprecision.com
Basic (DC)
Power Supplies
Unlike conventional power 
supplies with fixed output rat-
ings, the 9110 is a new type of
power supply that automatically
recalculates voltage/current 
limits for each setting.
Features & Benefits
■ 60 V/ 5 A, max 100 W output
■ 10 mV/1 mA resolution over full range
■ Bright, easy to read display
■ Very compact size and lightweight
The 1550 is a compact 108
watt power supply delivering
1-36 V and 0-3 A from its
main isolated output.
Features & Benefits
■ USB charging port on front panel
■ Rear panel security loop
■ Output On/Off control
Switching DC Power Supply 
with USB Charger
Models 1670A & 1671A
■ 3-digit, triple output regulated DC power 
supplies
Models 1689 & 1690
■ 1 to 15 V variable output
■ 28 A @ 13.8 V
■ Current foldback overload protection
■ Thermostatically controlled cooling fan
Model 1670A
Switching
The 1651A and 1652
triple output DC power
supplies offer two variable 0 - 24 VDC/
0 – 500 mA outputs, and one fixed 5 VDC/
0 – 4 A output in a compact package.
Common Features & Benefits
■ Independent or series tracking/parallel 
mode operation to double voltage or 
current
■ Adjustable current limiting
■ Short circuit protection, over voltage 
protection, reverse polarity protection
The 1760A, 1761, and 1762
triple output 
DC power supplies offer three independent 
outputs with two 4-digit LED displays and 
10 mV/1 mA resolution.
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Models 1680 & 1682A
■ Fixed 13.8 VDC output for automotive 
applications
■ 6 A peak (1680), 15 A peak (1682A)
■ Current foldback overload protection
■ Thermostatically controlled cooling fan 
(Model 1682A)
■ Convenient cigar lighter output (1680)
Multi Range DC Power Supply
Triple Output DC Power Supplies
Output Voltage Output Current Ripple & Noise Meter Type Weight D imensio n (W x H x D) Model
1 - 36 VDC 0 - 3 A ±5 mVrms, ±50 mVpp LCD 4.4 lbs (2 kg)
2.8” x 6” x 9.8”
(71 x 152 x 249 mm)
1550
3-14 VDC 12 A @ 13.8 V ≤10 mVrms Precision Analog 12.1 lbs (5.5 kg)
8.5” x 4.9” x 11.5”
(216 x 124 x 292 mm)
1686A
1-15 V 28 A @13.8 V 5 mVpp Precision Analog 19.9 lbs (9 kg)
9.84 x 5.5 x 8.86" 
(250 x 140 x 225 mm)
1689
1-15 V 28 A @13.8 V 5 mVpp Digital LED  19.9 lbs (9 kg) 1690
0-24 (A&B), 5 (Fixed) 0-0.5 (A&B), 4 (Fixed) ≤2 mVrms, <5 mVrms Dual Analog 10.5 lbs (4.8 kg)
11.75” x 5.5” x 10.97” 
(298 x 140 x 264 mm)
1651A
0-24 (A&B), 5 (Fixed) 0-0.5 (A&B), 4 (Fixed) ≤2 mVrms, <5 mVrms Dual 3-digit LED 10.5 lbs (4.8 kg) 1652
Main 0-30 VDC
Fixed 12 VDC ±5%
Fixed 5 VDC ±5%
0-3 A Main
Fixed 0-500 mA continuous
Fixed 0-500 mA continuous
≤5 mVrms
Dual 3-Digit LED 10.5 lbs (4.5 kg)
8.5” x 4.9” x 11.5" 
(216 x 124 x 292 mm)
1670A
◆◆
Main 0-30 VDC
Fixed 12VDC ±5%
Fixed 5 VDC ±5%
0-5 A Main
Fixed 0-500 mA
Fixed 0-500 mA
≤5 mVrms
Dual 3-Digit LED 14.3 lbs (6.5 kg)
1671A
◆◆
0-30 (A&B), 4-6.5 0-2 (A&B), 5 ≤1 mVrms Dual 4-digit LED 21 lbs (9.5 kg)
10.5” x 5.7” x 15” 
(267 x 145 x 381 mm)
1760A
◆◆
0-35 (A&B), 2-6.5 0-3 (A&B), 5 ≤1 mVrms Dual 4-digit LED 21 lbs (9.5 kg)
1761
◆◆
0-60 (A&B), 4-6.5 0-2 (A&B), 4 ≤1 mVrms, ≤2 mVrms Dual 4-digit LED 21 lbs (9.5 kg) 1762
Fixed 13.8 V ±0.5 V 6 ADC peak, 4 ADC continuous
≤ 6 mVrms
-- 6.5 lbs (2.9 kg)
6.31” x 3.62” x 6.75" 
(160 x 92 x 170 mm)
1680
Fixed 13.8 V ±0.5 V 15 ADC peak,12 ADC continuous
≤ 10 mVrms
-- 15 lbs (6.75 kg)
4.5” x 8.1” x 10.6” 
(115 x 205 x 270 mm)
1682A
60 V 5 A
≤ 2 mVrms
Dual 4-digit LED 5.9 lbs (2.65 kg)
3.5” x 6.9” x 11.10” 
(88 x 175 x 282 mm)
9110
Multirange Triple OutputFixed










