User Instructions

2
1. Technical description
The DC/DC 3A (DC/DC30SE) voltage- step up / step down converter is used for maintaining a constant output voltage in the
range between 5÷15V DC, adjusted with the V
ADJ
potentiometer, regardless of the input voltage fluctuations in the range of 9,5V ÷ 16V.
When the input voltage at the output is lower than needed, the converter increases it to the set value. When the input voltage at the
output is higher than needed, the converter lowers it to the needed value set by the V
ADJ
potentiometer. The maximum load current is
Imax=3A (Pmax=36W). The module does not feature galvanic isolation between input/output (IN-AUX) and operates on common
"ground" (0V) potential (IN- and AUX- terminals are galvanically connected = common terminal).
1.1. Block diagram (Fig.1).
Fig.1. Block diagram of the converter’s module.
1.2. Description of components and connectors (Fig. 2, Table 1, Table 2).
Table 1.
No.
[fig.2]
Component’s description
[1]
IN LED light - red
[2]
Power connector of the DC/DC module
[3]
V
ADJ
voltage adjustment (5÷15V)
[4]
AUX LED light – green
[5]
The DC/DC module’s connector (power supply and PSU)
[6]
PSU LED light – red
[7]
Mounting strip
Table 2.
[2], [5]
Description of module’s connectors
+IN
- IN
DC supply input
(9,5V÷16V DC, power consumption from the power source)
+AUX
- AUX
DC supply output
(+AUX= +U, -AUX=GND)
PSU
Technical output of failure (OC type): OLP/SCP activation (short-circuit or overload
protection)
Failure status: hi-Z (high impedance), normal status: L (0V, GND)
Fig.2. The converter module’s view.