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Unregulated Open Frame DC Power Supplies

Series: BVU

RoHS

● Low cost unregulated DC power supplies

● Field-selectable input taps 103/115/126/207/230/253 VAC for fine-

tuning output to match actual field conditions

● Improved ripple - 3% maximum

● Fuse protected output

● Computer grade capacitors

● Floating output provides versatility for wiring

● Safety Agency Approvals BVU Series:

− UL 1950, third edition, File #E181899.

− CSA, C22.2 No.950, File #E181899.

− CE Marked.

The BVU Series

Specifications

The BVU Series of unregulated DC power supplies is the

best low cost alternative, where moderate output variations

Field selectable taps for ±10%. High line tolerance on

and AC ripple are acceptable. The field-selectable input taps voltage is +10%

allow fine-tuning the output voltage to match actual field

conditions. The DC output is fused for short circuit

(see table).Transformer taps provided for approx. 10%

protection. For maximum versatility, the output is floating

output voltage adjustment.

and may be referenced to another low voltage common

ground or placed in series with other DC power supplies.

load.

Applications

to 70°C)

● DC Motors - Stepping and Servos

● Solenoid values

output It should be noted that the fuse is not necessarily

● Relays

direct in line with the output. In most models the fuse is

● Lamps and Signal Systems

prior to the output capacitor and in case of a short

● Input to 3-terminal on-board regulators

circuit, the capacitor energy will be discharged into the

● Some Floppy Disk Drives

load even if the fuse has opened.

Schematic shows transformer taps provided for approx.

+/- 10% output voltage adjustment. Typical full load

output voltage at 115VAC input using taps 1 and 3. For

10% higher output voltage use taps 1 and 2. For 10%

lower output voltage use taps 1 and 4.