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Geekcreit® DC 6-40V To 1.2-36V 300W 20A Constant Current Adjustable Buck Converter Step Down Module Board

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Specifications:
Color: SilverMaterial: MetalSize: Approx. 60 x 52 x 27mm / 2.36 x 2.05 x 1.06""Input Voltage: DC 6-40V (10V to 40V is suggested)Output Voltage: DC 1.2-36VOutput Current: 20A(max.), 15A (suggested)Efficiency: 97% (24V to 12V, 20A)Output Ripple: u226450mVWiring Method: TerminalShort Circuit Protection: Self-recovery (cannot short circuit for a long time)VO+: Output positiveVO-: Output negative+IN: Input positive-IN: Input negativeCV: Output voltage adjustmentCC: Output current adjustmentEN: Enable, low voltage level shut off output; suspension, high voltage level is effectiveWhen input and output is common grounded, no-load CV output constant voltage, CC output constant currentWorking Tempreture: -10°C-75°C
Features:
With a wide input voltage range from 6V to 40V, the step-down converter can accurately adjust output voltage and currentThe efficiency can be up to 96%, measured at 20A, converting 24V to 12VDesigned with 75V/80A large current dual MOS tubeThe buck module has 2 heat sink that could enhance heat dissipationWiring is convenient with these large current 30A screw terminalsInput and output use high frequency low resistance electrolytic capacitor, low ripple, stable outputStable and reliableFine workmanship and durable
Package included:
1 x 300W 20A adjustable step-down converter module

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Geekcreit® DC 6-40V To 1.2-36V 300W 20A Constant Current Adjustable Buck Converter Step Down Module Board

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Adi VIP5
RO
12/08/2019

The unit is OK.
I tested it for 24V input, 11V output ay 10A current.
The output voltage is relatively constant (from 11.5V no load to 11.2V at 10A).
The temperatures are:
100 dgr.C for transformer,
100 dgr.C for one heatsink and 80 dgr.C for the other.

The unit is OK.
I tested it for 24V input, 11V output ay 10A current.
The output voltage is relatively constant (from 11.5V no load to 11.2V at 10A).
The temperatures are:
100 dgr.C for transformer,
100 dgr.C for one heatsink and 80 dgr.C for the other.

The unit is OK.
I tested it for 24V input, 11V output ay 10A current.
The output voltage is relatively constant (from 11.5V no load to 11.2V at 10A).
The temperatures are:
100 dgr.C for transformer,
100 dgr.C for one heatsink and 80 dgr.C for the other.
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Comments (5)

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bice90 VIP4
SE
22/05/2020

A good DC-DC converter. I use it to regulate the output power of a LED power supply for my hobby projects. The filter capacitor for the trimmer potentiometer has a dedicated spot on the PCB. This is not common for some of these boards which can be annoying when you want to replace the trimmers to some other potmeters. The solders look nice and clean. Heatsink goes hot when larger power is used, so it is a good idea to use some fan to keep it cool.

A good DC-DC converter. I use it to regulate the output power of a LED power supply for my hobby projects. The filter capacitor for the trimmer potentiometer has a dedicated spot on the PCB. This is not common for some of these boards which can be annoying when you want to replace the trimmers to some other potmeters. The solders look nice and clean. Heatsink goes hot when larger power is used, so it is a good idea to use some fan to keep it cool.

A good DC-DC converter. I use it to regulate the output power of a LED power supply for my hobby projects. The filter capacitor for the trimmer potentiometer has a dedicated spot on the PCB. This is not common for some of these boards which can be annoying when you want to replace the trimmers to some other potmeters. The solders look nice and clean. Heatsink goes hot when larger power is used, so it is a good idea to use some fan to keep it cool.
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0

Q:
DC-DC Boost Converter, 12V to 36V 750wats?

DC-DC Boost Converter, 12V to 36V 750wats?
DC-DC Boost Converter, 12V to 36V 750wats?

A:

it's a buck converter, that means it can only step voltage down (i.e. outgoing voltage is lower than what u give it) otherwise, what @sbrsdr wrote is completely wrong, you can ask even 20A at 2V if you really want to, it wont get really hot.

it's a buck converter, that means it can only step voltage down (i.e. outgoing voltage is lower than what u give it) otherwise, what @sbrsdr wrote is completely wrong, you can ask even 20A at 2V if you really want to, it wont get really hot.

Answered by B_L1996 on 02/08/2021Helpful (0)
0

Q:
How many Ohms is the current adjustment potentiometer? How many Ohms is the voltage adjustment potentiometer?

How many Ohms is the current adjustment potentiometer? How many Ohms is the voltage adjustment potentiometer?
How many Ohms is the current adjustment potentiometer? How many Ohms is the voltage adjustment potentiometer?

A:

104 is 100k, 10 and then 4 zeros = 100,000 ohms.

104 is 100k, 10 and then 4 zeros = 100,000 ohms.

Answered by BG183217423 on 07/06/2020Helpful (0)
0

Q:
can it take unfiltered rectified A/C or does it require filtered, smoothed input?

can it take unfiltered rectified A/C or does it require filtered, smoothed input?
can it take unfiltered rectified A/C or does it require filtered, smoothed input?

A:

For input, the voltage is only DC.

For input, the voltage is only DC.

Answered by Teom@n on 08/08/2024Helpful (0)
0

Q:
Being current and voltage on the output load mutually dependent according to the Ohm law: R * I = V , I would have expected only one potentiometer, labelled – say – as “voltage regulator”, to adjust both voltage and current, being the current necessarily defined by Voltage/LoadResistance. What’s the reason and the meaning of having two instead? Thank you.

Being current and voltage on the output load mutually dependent according to the Ohm law: R * I = V , I would have expected only one potentiometer, labelled – say – as “voltage regulator”, to adjust both voltage and current, being the current necessarily defined by Voltage/LoadResistance. What’s the reason and the meaning of having two instead? Thank you.
Being current and voltage on the output load mutually dependent according to the Ohm law: R * I = V , I would have expected only one potentiometer, labelled – say – as “voltage regulator”, to adjust both voltage and current, being the current necessarily defined by Voltage/LoadResistance. What’s the reason and the meaning of having two instead? Thank you.

A:

Pots are used to set the maximum output of voltage and current. If you only have a pot for voltage, you can't control the amperage, and vice versa.

Pots are used to set the maximum output of voltage and current. If you only have a pot for voltage, you can't control the amperage, and vice versa.

Answered by Tino on 24/06/2020Helpful (0)
0

Q:
1- What is the Ah spent with no conection on output? 2- My solar system battery has range of 10.5 at 14.4 on extreme working mode. I need 12v stable constant on output with this range I told. This module board can do that? (IN: 10.5v at 14.4v variable / OUT: 12v stable)

1- What is the Ah spent with no conection on output? 2- My solar system battery has range of 10.5 at 14.4 on extreme working mode. I need 12v stable constant on output with this range I told. This module board can do that? (IN: 10.5v at 14.4v variable / OUT: 12v stable)
1- What is the Ah spent with no conection on output? 2- My solar system battery has range of 10.5 at 14.4 on extreme working mode. I need 12v stable constant on output with this range I told. This module board can do that? (IN: 10.5v at 14.4v variable / OUT: 12v stable)

A:

No! It will lower the 14.4 volts to 12v, but it will NOT raise the 10.5v up to 12v

No! It will lower the 14.4 volts to 12v, but it will NOT raise the 10.5v up to 12v

Answered by Filek on 25/02/2022Helpful (0)
0

Q:
if I'm having a supply of 20V and 2.5A as input, what is the max current I can draw at the output if I set the voltage to 5V at output?

if I'm having a supply of 20V and 2.5A as input, what is the max current I can draw at the output if I set the voltage to 5V at output?
if I'm having a supply of 20V and 2.5A as input, what is the max current I can draw at the output if I set the voltage to 5V at output?

A:

Between 2 and 7A. For higher demands, use actif cooling.

Between 2 and 7A. For higher demands, use actif cooling.

Answered by Teom@n on 15/10/2023Helpful (0)
0

Q:
Can it step up from 12v to 14.4v?

Can it step up from 12v to 14.4v?
Can it step up from 12v to 14.4v?

A:

No.. It's a nice step down converter.

No.. It's a nice step down converter.

Answered by BG511125724 on 07/02/2021Helpful (0)
0

Q:
I need to have 8 volts at up to 20 amps into an electrolysis cell to produce chlorine in a swimming pool. Would this work off a 300-500 watt solar panel(s) at max 30volts to give my required supply to the cell?

I need to have 8 volts at up to 20 amps into an electrolysis cell to produce chlorine in a swimming pool. Would this work off a 300-500 watt solar panel(s) at max 30volts to give my required supply to the cell?
I need to have 8 volts at up to 20 amps into an electrolysis cell to produce chlorine in a swimming pool. Would this work off a 300-500 watt solar panel(s) at max 30volts to give my required supply to the cell?

A:

Only the DC voltage conversion module, With a wide input voltage range from 6V to 40V, the step-down converter can accurately adjust output voltage and current.

Only the DC voltage conversion module, With a wide input voltage range from 6V to 40V, the step-down converter can accurately adjust output voltage and current.

Answered by sam on 11/09/2020Helpful (0)
0

Q:
Is this just step down converter or is it also step up?

Is this just step down converter or is it also step up?
Is this just step down converter or is it also step up?

A:

it's a buck and not a boost, so no

it's a buck and not a boost, so no

Answered by francopolli on 25/08/2022Helpful (0)
0

Q:
What is the input amper

What is the input amper
What is the input amper

A:

I am not entirely sure because I have not tested it yet. Although the Input Amp should be whatever the component draws at that time. If you reduce the Voltage, you increase the Ampere and if you increase the voltage, the amp will decrease.

I am not entirely sure because I have not tested it yet. Although the Input Amp should be whatever the component draws at that time. If you reduce the Voltage, you increase the Ampere and if you increase the voltage, the amp will decrease.

Answered by Tino on 28/05/2020Helpful (0)
0

Q:
Let me know how to adjust the Constant Currencies setting.

Let me know how to adjust the Constant Currencies setting.
Let me know how to adjust the Constant Currencies setting.

A:

Funciona muy bien

Works very well

Answered by RODRIGUES on 23/05/2024Helpful (0)
0

Q:
Hay de 30A ajustable?

Hay de 30A ajustable?
Hay de 30A ajustable?

A:

yes

yes

Answered by Danyluk Emil on 18/05/2022Helpful (0)
0

Q:
Can you use this device to step up voltage, say from 6 volts input to 12 volts output?

Can you use this device to step up voltage, say from 6 volts input to 12 volts output?
Can you use this device to step up voltage, say from 6 volts input to 12 volts output?

A:

This device is Step Down Converter.

This device is Step Down Converter.

Answered by Teom@n on 09/11/2023Helpful (0)
0

Q:
Hello I tried to desolder the two pots on the board to change them for external pots exactly like Roter36 in the second photo, I destroyed the SM resistor and the tracks on the board. The three pin sockets would not go in the pcb hole so drilled them out, by this time the module was not repairable. The second converter is on its way from Banggood and hope someone can help. PS I'm an Electrician not electronics Engineer !!! Many thanks Andy.

Hello I tried to desolder the two pots on the board to change them for external pots exactly like Roter36 in the second photo, I destroyed the SM resistor and the tracks on the board. The three pin sockets would not go in the pcb hole so drilled them out, by this time the module was not repairable. The second converter is on its way from Banggood and hope someone can help. PS I'm an Electrician not electronics Engineer !!! Many thanks Andy.
Hello I tried to desolder the two pots on the board to change them for external pots exactly like Roter36 in the second photo, I destroyed the SM resistor and the tracks on the board. The three pin sockets would not go in the pcb hole so drilled them out, by this time the module was not repairable. The second converter is on its way from Banggood and hope someone can help. PS I'm an Electrician not electronics Engineer !!! Many thanks Andy.

A:

Ohh, Professional knowledge is recommended to consult the electronic forum.

Ohh, Professional knowledge is recommended to consult the electronic forum.

Answered by Rawson on 13/05/2020Helpful (0)
0

Q:
Hi, can the minimum output voltage go lower? I need very good constant current regulation even at very low voltage for electroplating, how will this unit perform at low constant currents and low voltage? Typically with other supplies I turn voltage up without much regard for what it is set to and then adjust the constant current to required setting. Would this unit be capable of this? Thanks

Hi, can the minimum output voltage go lower? I need very good constant current regulation even at very low voltage for electroplating, how will this unit perform at low constant currents and low voltage? Typically with other supplies I turn voltage up without much regard for what it is set to and then adjust the constant current to required setting. Would this unit be capable of this? Thanks
Hi, can the minimum output voltage go lower? I need very good constant current regulation even at very low voltage for electroplating, how will this unit perform at low constant currents and low voltage? Typically with other supplies I turn voltage up without much regard for what it is set to and then adjust the constant current to required setting. Would this unit be capable of this? Thanks

A:

non lo so

non lo so

Answered by francy79 on 06/02/2022Helpful (0)
0

Q:
Hey! Will this converter handle 42V?? I am going to convert it down to 24V. I am not going to draw more than 200W for longer periods.

Hey! Will this converter handle 42V?? I am going to convert it down to 24V. I am not going to draw more than 200W for longer periods.
Hey! Will this converter handle 42V?? I am going to convert it down to 24V. I am not going to draw more than 200W for longer periods.

A:

yes

yes

Answered by Tebra15 on 04/04/2022Helpful (0)
0

Q:
Could you control the output voltage by means of the output from a DAC in stead of the potentiometer?

Could you control the output voltage by means of the output from a DAC in stead of the potentiometer?
Could you control the output voltage by means of the output from a DAC in stead of the potentiometer?

A:

Perfeito

Perfect

Answered by RODRIGUES on 23/05/2024Helpful (0)
0

Q:
Can I connect these converters( two or more) in parallel to a power source to get one output?

Can I connect these converters( two or more) in parallel to a power source to get one output?
Can I connect these converters( two or more) in parallel to a power source to get one output?

A:

It'seasy to get in trouble , in case of un balancced load the highest volt goes to other device . ۯ

It'seasy to get in trouble , in case of un balancced load the highest volt goes to other device . ۯ

Answered by BG511125724 on 06/01/2021Helpful (0)
0

Q:
Does all the chips come with the numbering shaved?

Todos os chips vem com a numeração raspada?
Does all the chips come with the numbering shaved?

A:

sim

yes

Answered by BG103717394 on 26/04/2023Helpful (0)
0

Q:
Hello .. Does the device have short circuit protection?

Hello .. Does the device have short circuit protection?
Hello .. Does the device have short circuit protection?

A:

Yes

Yes

Answered by John on 23/09/2020Helpful (0)
0

Q:
I am applying 12 vDC. I wish to get 6.5 vDC but the output is 0 - 4.9vDC. Is this normal?

I am applying 12 vDC. I wish to get 6.5 vDC but the output is 0 - 4.9vDC. Is this normal?
I am applying 12 vDC. I wish to get 6.5 vDC but the output is 0 - 4.9vDC. Is this normal?

A:

ver is my ooders. all ?????

ver is my ooders. all ?????

Answered by BG481054334 on 22/08/2024Helpful (0)
0

Q:
I purchased this in anticipation of a great project, having read all the reviews it looked good but never did work correctly. it doesn't matter what voltage/current you feed in it will only allow a maximum of 2.9 volts out. I have tried every combination of pawer supplies but without any luck. I have contacted Babyhood customer support a few times over the last 2 weeks but they don't reply. I'll be sorry to lose them as a supplier but if they don't give support then I'll have no choice. a link to my problems. sorry about the 3D printer working away in the background https://youtu.be/3EoG54JzOL4

I purchased this in anticipation of a great project, having read all the reviews it looked good but never did work correctly. it doesn't matter what voltage/current you feed in it will only allow a maximum of 2.9 volts out. I have tried every combination of pawer supplies but without any luck. I have contacted Babyhood customer support a few times over the last 2 weeks but they don't reply. I'll be sorry to lose them as a supplier but if they don't give support then I'll have no choice. a link to my problems. sorry about the 3D printer working away in the background https://youtu.be/3EoG54JzOL4
I purchased this in anticipation of a great project, having read all the reviews it looked good but never did work correctly. it doesn't matter what voltage/current you feed in it will only allow a maximum of 2.9 volts out. I have tried every combination of pawer supplies but without any luck. I have contacted Babyhood customer support a few times over the last 2 weeks but they don't reply. I'll be sorry to lose them as a supplier but if they don't give support then I'll have no choice. a link to my problems. sorry about the 3D printer working away in the background https://youtu.be/3EoG54JzOL4

A:

Ihad the same issue. I got a new device sent after contacting customer support. The new device works.

Ihad the same issue. I got a new device sent after contacting customer support. The new device works.

Answered by zuessi on 01/04/2021Helpful (0)
0

Q:
Ich bekomme die Ausgangsspannung nicht höher als 4.2V. Eingangsspannung habe ich mit 19V versucht. ist der Converter defekt?

Ich bekomme die Ausgangsspannung nicht höher als 4.2V. Eingangsspannung habe ich mit 19V versucht. ist der Converter defekt?
Ich bekomme die Ausgangsspannung nicht höher als 4.2V. Eingangsspannung habe ich mit 19V versucht. ist der Converter defekt?

A:

Wenn kein Problem mit der 19-V-Stromversorgung vorliegt, wenden Sie sich bitte an den Kundendienst.

If there is no problem with the 19V power supply, please contact customer service.

Answered by Teom@n on 10/03/2024Helpful (0)
0

Q:
I have 15V input and need 14V output with 10A - does that work?

I have 15V input and need 14V output with 10A - does that work?
I have 15V input and need 14V output with 10A - does that work?

A:

I don't think it will work. The voltage drop between input and output is in general more than 1V.

I don't think it will work. The voltage drop between input and output is in general more than 1V.

Answered by farkasditke73 on 19/06/2023Helpful (0)
0

Q:
Are the input and output isolated from each other?

Are the input and output isolated from each other?
Are the input and output isolated from each other?

A:

Yes, they are isolated

Yes, they are isolated

Answered by Teom@n on 10/03/2024Helpful (0)
0

Q:
Hi. I am using these for a number of projects I have but I have a question about the constant current output. It doesn't seem to work for me as when I turn the potentiometer there is no reduction or increase in current. Is their a certain setup it needs to be in so as to provide a specified constant current?

Hi. I am using these for a number of projects I have but I have a question about the constant current output. It doesn't seem to work for me as when I turn the potentiometer there is no reduction or increase in current. Is their a certain setup it needs to be in so as to provide a specified constant current?
Hi. I am using these for a number of projects I have but I have a question about the constant current output. It doesn't seem to work for me as when I turn the potentiometer there is no reduction or increase in current. Is their a certain setup it needs to be in so as to provide a specified constant current?

A:

Hi, actually I just tested the voltage output regulation but not the current regulation. I need to further testing to do. But remember that the output current is always dependent on the load which is connected. In example if you have 12V output and 12V constant load (such as resistance load) you cannot feed more amperes with the constant voltage to it. What project do you use it for?

Hi, actually I just tested the voltage output regulation but not the current regulation. I need to further testing to do. But remember that the output current is always dependent on the load which is connected. In example if you have 12V output and 12V constant load (such as resistance load) you cannot feed more amperes with the constant voltage to it. What project do you use it for?

Answered by brocak on 17/09/2019Helpful (0)
0

Q:
What are the dimensions of the mounting holes?

What are the dimensions of the mounting holes?
What are the dimensions of the mounting holes?

A:

yes

yes

Answered by francy79 on 08/01/2022Helpful (0)
0

Q:
what is lowest adjutible current?

what is lowest adjutible current?
what is lowest adjutible current?

A:

0.3A-20A (adjustable)

0.3A-20A (adjustable)

Answered by wujiahui on 10/06/2019Helpful (0)
0

Q:
I see the CC and CV potentiometers soldered. Can I remove these and take it to a front panel with normal pots for user adjustment ? If so what values should I use for the pots ?

I see the CC and CV potentiometers soldered. Can I remove these and take it to a front panel with normal pots for user adjustment ? If so what values should I use for the pots ?
I see the CC and CV potentiometers soldered. Can I remove these and take it to a front panel with normal pots for user adjustment ? If so what values should I use for the pots ?

A:

Yes, you shiuld be able to do it as long as you keep the distance as short as possible. Pots are used as a voltage divider to create a voltage reference.

Yes, you shiuld be able to do it as long as you keep the distance as short as possible. Pots are used as a voltage divider to create a voltage reference.

Answered by Tino on 24/06/2020Helpful (0)
0

Q:
What is the dropout voltage?

What is the dropout voltage?
What is the dropout voltage?

A:

ok perfeito

ok perfect

Answered by BG103717394 on 26/04/2023Helpful (0)