Variable Switchmode DC-DC Buck Power Supply

B3603 DC Step Down Power Module

Features:

OUT, CV and CC indicator light
Digital display, convenient and easy to use
Constant voltage and constant current modes
Adjust output voltage and current value accurately
10 groups of storage location, free storage and bring up
Automatic/manual switch voltage, current, power, capacity and other parameters display
It can be set whether automatically output or not after power up
It can be set whether take turns to show voltage, current, power and capacity or not after output

Specification:

Input voltage: 6V ~ 40V
Output voltage: 0V ~ 36V
Output current: 0A ~ 3A
Conversion efficiency: up to 92%
The output ripple: ≤50mV
Working temperature: -40°C ~ +85°C
Working frequency: 150KHz
Short circuit protection: constant current
Voltage regulation/display resolution: 0.01V
Current regulation/display resolution: 0.001A
The minimum display resolution of power: 0.001W
The minimum display resolution of capacity: 0.001AH
Input reverse connect protection: no, if necessary please install diode
Connection mode: terminals
Size: 66 x 50 x 21mm
Weight: 44g

Usage:

This module has two kinds of usage: one is simple usage,another is fully functional usage.

Simple usage:

1. Properly connect input,output,and guarantee the input voltage in the range of requirements.It is forbidden to reverse connection, or it will be burn out.

2. Setting the voltage and current value,the setting method as follows:

After electrify, the LED default display the voltage value,the format of voltage display is "00.00", press "SET" button to switch to the current value,the format of current value display is "0.000". Press the button increase the value ,press the button reduce the value, short press the button can accurate regulation, long press the button can quickly regulate.If the voltage or current value has been changed, press the "SET" button the LED display the "----"said that the voltage or the current has been saved . If there is no change of voltage or current value, press "SET" key to switch to the current or voltage value.

3. After finish setting, press the "OK" button to output.

4. In the output state, press the button can increase the output voltage value and press the button can reduce the output voltage value when the LED display the voltage value,press the button can increase the current value and press the button can reduce the current value when the LED display the current value,short press the button can accurate regulation, long press the button can quickly regulate. In the output state, short press "OK" button can switch display parameters such as voltage, current, power, capacity, long press for 3 seconds will automatically take turns to show, long press"OK"button again can cancel the take turns to show.In the output state,the and button is invalid

5. In the output state, press the "SET" button to close the output.

Fully functional usage:

This module has three special functions, the default is closed, if necessary, you can open them.
Function 0: After electricity,it will automatically output.
Function 1: Save and bring up the parameters, display the power and capacity.
Function 2: Automatic take turns to show parameters after output

Turn ON/OFF method:

Long press the"OK" button, then to the module electricity, the LED will take turns to show in "--0-"~"--2-" , when display "--0-" ,release the"OK" button will open or close function 0, when display "--1-" ,release the"OK" button will open or close function 1, when display "--2-" ,release the"OK" button will open or close function 2. After releasing the "OK" button the digital tube display "--y-" said already open the current function, the display "--n-" said it already close the current function.

1. Enable the function 0 it will automatically output after electricity.

2. Enable the function 1, in the condition of no output, press "SET" button will take turns to show among voltage "00.00", current "0.000", bring up the parameters "Lo.- 0" and save the parameters "SA.- 0". Below illustrate this function: For example:we need store10V, 1.5 A in the storage location 1 and bring up the parameter from storage location 1.
  (1) Press "SET" button to switch to the voltage value, setting voltage value of 10.00 V, press "SET" button to save the voltage value.
  (2) Press "SET" button to switch to the current value, setting current value of 1.500 A, press "SET" button to save the current value.
  (3) Press "SET" button to switch to the "SA.-0", press the or button to select the storage location, here need to adjust to "SA.-1", press "OK" button to store the "10V, 1.5 A" in the storage location 1.
  (4) Press "SET" button to switch to "Lo.-0", press the or button to select the storage location which the parameter need to bring up, here need to adjust to "Lo.-1", then press the "OK" button to bring up the parameters of storage location 1.
  (5) This module has total of 0 ~ 9 common 10 groups of storage location, the storage location can be set arbitrary voltage and current value.
 
3. Enable the function 2,after output,it will automatically take turns to display the parameters such as voltage, current, power and capacity.

Note:

1. Properly connect input and output, it is forbidden to reverse connection, or it will be burn out.
2. This module is a step-down module, input voltage need over output voltage more than 1.5 V.
3. Output under 2A natural cooling, output above 2A shall strengthen heat dissipation

Package included:

1 x LED display step down module

User Manual

Calibration Method

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