User Instructions

ManualsBrandsPulsar ManualsEquipment for HD camerasPSB 13,8V/1,5A enclosed buffer switch mode power supply unit

PSB-251215

PSB 13,8V/1,5A enclosed switch

mode buffer power supply

Edition: 5 from 01.03.2018

Supercedes edition: 4 from 16.09.2014

Features of the power supply:

 DC 13,8V/1,5A uninterruptible power supply*

 wide AC input voltage range 176÷264V

 high efficiency 70%

 controlling of battery charging and maintaining

 protecting of battery against excessive discharging

(UVP)

 battery charging current 0,5A

 additional accessories: automation module MPSB12

(technical outputs):

 EPS technical output indicating AC power loss

 PSU technical output indicating PSU failure

 LoB technical output indicating battery low

voltage

 battery output is full protected against short-

circuit and reverse connection

 LED optical signalisation

 protections:

 short-circuit protection SCP

 over voltage protection OVP

 surge protection

 overload protection OLP

 warranty – 2 year from the production date

1. Technical description.

1.1 General description.

Buffer-type power supply units are intended for continuous power supply to devices that require stabilised voltage

of 12V DC (+/-15%). The power supply provides a voltage of U=13,8V DC with an output current of I=1A+ 0,5A battery

charging*. In case of power voltage decay, prompt switching to battery supply occurs. The power supply unit is protected

against a short circuit, an overload, a surge or over voltage protection.

Under normal operation, the total current drawn by the equipment may not exceed I = 1A. Maximum battery

charging current: 0,5A. Total device current + battery: 1,5A max.

1.2. Technical parameters.

Supply voltage

176÷264V AC

Current consumption

0,35A@230VAC max.

Supply power

25W max.

Efficiency

70%

Output voltage

11V÷ 13,8VDC – buffer operation

9,5V÷13,8V DC – battery operation

Output current t

AMB

<30°C

1A + 0,5A battery charging - see chart 1

Output current t

AMB

=40°C

0,7A + 0,5A battery charging - see chart 1

Voltage adjustment range

12÷14V DC

Ripple voltage

120mV p-p max.

Battery charging current

0,5A max

Short-circuit protection SCP

electronic, automatic recovery

Overload protection OLP

105-150% of power supply, automatic recovery

Overload protection (battery) OLP

polymer fuse (PTC)

Surge protection

varistors

Overvoltage protection OVP

>16V (automatic recovery)

Excessive discharge protection UVP

U<9,5 V (± 5%) – disconnection of battery

Optical signalisation

green LED- presence of AC voltage

Output of optical signalization

LED AC- presence of AC voltage

LED DC- presence of DC voltage on power supply output

Additional accessories

Module MPSB12 (technical outputs)

Operation conditions

2-nd enviromental class, temperature: -10

C÷40

See chart 1

Summary of content (4 pages)

PAGE 1
PSB-251215 PSB 13,8V/1,5A enclosed switch mode buffer power supply Edition: 5 from 01.03.2018 Supercedes edition: 4 from 16.09.
PAGE 2
Dimensions Net/gross weight Protection class EN 60950-1:2007 Connectors Electrical strength of insulation: - between input (network) circuit and output circuits of power-supply (I/P-O/P) - between input circuit and PE protection circuit (I/PFG) - between output circuit and PE protection circuit (O/P-FG) Insulation resistance: - between input circuit and output or protection circuit Storage temperature Vibrations and impulse waves during transport relative humidity 20%...
PAGE 3
The circuit of the shock protection shall be performed with a particular care, i.e. the yellow and green protection wire of the power cable shall be connected from one side to the terminal marked by the symbol of in the casing of the power-supply. Operation of the power-supply without the properly made and fully operational circuit of the shock protection is UNACCEPTABLE! It can result in failure of devices and electric shock. 4.
PAGE 4
3. Cooperation with the MPSB12 automation module (option). The MPSB12 automation module is intended for indicating the operating status of buffer power supplies, PSB 13,8V type. The PCB board features LEDs that indicate PSU operating status (presence of AC voltage, presence of DC voltage, battery voltage). The module is also equipped with technical outputs of: EPS - AC power loss, PSU - PSU failure, LoB -low battery voltage. Element no.