How to use 5A Buck Boost Converter, DC-DC 10V-50V Module

This DC adjustable constant voltage constant current step up power supply module is with LCD display which can display input voltage and output voltage, current, power and display status in a high clear way.

It also features with adjustable stable output voltage and current.Set output current to meet the demand.

It can be used as ordinary buck power supply module and charger which is simple, efficient and practical.

Then I'd like to share the using steps with you.

Features:

• DC adjustable constant voltage constant current step up power supply module is with Working Voltage:DC 9.0V-45V, Output Voltage:DC 11V-50V, Output Current:5A(Disability output if more than 5A), Output Power:90W(Disability output if more than 90W)
• It's with LCD display which can display input voltage and output voltage, current, power and display status in a high clear way.
• Supports complete disability output, anti-reverse protection, short circuit protection, anti-back-flow protection, charging function and so on
• Multiple parameters are displayed simultaneous. High current and low heat, can be used as ordinary buck power supply module and charger which is simple, efficient and practical
• How to use as an ordinary step up power module or a charger, please download the User Manual on the Technical Specification column

Parameters:

• Working Voltage:DC 9.0V-45V
• Output Voltage:DC 11V-50V
• Output Current:5A(Disability output if more than 5A)
• Output Power:90W(Disability output if more than 90W)
• Voltage Display Range:0~50V
• Voltage Display Precision:+/-0.3V
• Voltage Display Resolution:0.05V
• Current Display Range:0~5A
• Current Display Resolution:+/-0.1A
• Current Display Precision:0.005A
• Conversion efficiency:About 96%
• Working current:30mA
• Short Protection:Yes
• Anti-reverse Protection:Yes
• Anti-back-flow Protection:Yes
• Working Temperature range:-20℃~85℃
• Working Humidity range:0%-95%RH

Button/Potentiometer/LED introduction:

①　Long press means it needs to press for more than 3 seconds.

②　ON/OFF:Short Press to select if it's output.Default is OFF.

③　IN/OUT:Short Press to switch display input voltage or output voltage.Long press is used to switch display output current or output power.

④　CV Potentiometer:Adjust output voltage. Clockwise rotation can increase the output voltage.

⑤　CC Potentiometer:Adjust output current.Clockwise rotation can increase the output current.

⑥　Note:It just can be set after it's connected to battery, otherwise module will not work normally.

⑦　CHARGER LED:Red LED, Charging indicator.It will turn ON when charging.

⑧　FULL LED:Green LED, Charged indicator.It will turn ON after charged.

⑨　OUT LED:Blue LED, Output indicator.It will turn ON when there is a output at output terminal.

Using Steps:

1.Use as an ordinary step up power module:

1.1.Connect right input voltage at input terminal

1.2.Adjust CV constant voltage potentiometer to set output voltage according to requirement

1.3.Rotate CC potentiometer at a counterclockwise way more than 20 times at first

1.4.Rotate CC constant current potentiometer at a clockwise way to set output current according to required over-current protection value.

1.5.Test and using(E.g:Module’s maximum output current is 2A if display 2A on multimeter. Red LED indicator will turn on if output reaches to 2A, or LED is OFF.)

1.6.Screen will display ‘Err’ if load current is more than over-current protection value. So user need to rotate CC potentiometer at clockwise way to increase output current.

2.Use as a charger:

2.1.Power module can not be used as charger module if it does not support constant current function.The voltage difference between the battery with insufficient voltage and the charger is very large.Causes excessive charging current even can damage the battery.So it needs to keep charging in constant current mode to reach a certain level.Then switch back to constant voltage charging automatically.

2.2.Make sure that the floating charge voltage and charge current is for battery.If the lithium battery’s parameter is 3.7V/2200mAh, then the float charge voltage is 4.2V, and the maximum charging current is 1C, which is 2200mA.

2.3.Connect right input voltage at input terminal.(Note:Please don’t connect load during setting the parameter).

2.4.Test output voltage by multimeter and adjust CC potentiometer to make sure output voltage reach to required floating charge voltage.(If charge a 3.7V lithium battery, adjust the output voltage to 4.2V)

2.5.Rotate CC potentiometer counterclockwise more than 20 times at first.

2.6.Connect to battery at output terminal.

2.7.Rotate CC constant current potentiometer clockwise to set output current according to require charge current value.

Alarming Interface Explanation

Attentions:

①　Constant current is just for battery. And it will not work if the load is not battery.

②　It is a step up power supply module that the output voltage must be higher than input voltage. Otherwise it will not work.

③　Short-circuit output is not supported to regulate constant current value.

④　It is a DC power module that it can not be connected to AC power.

⑤　Input voltage must be 0.8V lower than output voltage.

⑥　’IN-’ and ‘OUT-’ can not be connected together, otherwise the module can not support constant current output.

⑦　Please make sure input power is more than load power.

⑧　Please step down output power if module is hot.

⑨　Default output voltage is about 15V.