Change output Boost Buck DC Stabiliser

[SAMyMAS]

Hello All,

I need to change the output of Boost Buck DC stabiliser from 20V to 24V. Ideally would be adding regulator, so it is more practical in use. It is in a waterproof metal case and the bottom part is a kind of soft gel/glue hides the electronics. I haven’t tried to open/pry it off to get to the electronics yet, wondering if someone has done this.

Any thoughts/ideas would be greatly appreciated.



Technical data:

• Input voltage: DC 12V
• Input voltage Range: 10V - 16V
• Output voltage: 20V +/-0.3V
• Output Current: 10A
• Output power: 200W
• Soft start time: ~500mS
• Conversion efficiency: >85%
• Load regulation: +/- 2%
• Voltage regulation: +/- 1%
• Dynamic response speed: 5% 200uS
• Module Properties: Non-isolated
• Working temperature: industrial grade(-20 Deg Celsius to 85 Deg Celsius)
• Qty: 1 piece
• Measurement: 74x74x32mm
• Spec: Over-current protection
• Spec: Overheat protection
• Spec: Over-current protection
• Spec: Short-circuit protection and automatic recovery
• Waterproof: Yes

 

[Delta Prime]

You need heat and solvent remover. I have done this before, but I knew exactly what the capsulate chemical properties were.
This is a DIY. It could be fun and time consuming as far as removal to access the electronic opponents themselves.
If you know nothing about DC to DC Buck boost converters,then I will be willing to hold your hand through the whole process…
A prerequisite is knowing how to read schematics…

 

[Delta Prime]

Ideally would be adding regulator, so it is more practical in use

No! Ideally is an abstract concept.
Book boost architecture, incorporates regulation…

 

[SAMyMAS]

Thank you @Delta Prime for your reply and willing to help. It’s much appreciated. I will try to get to the electronic components.

 

[Delta Prime]

Can you provide a link to your product specifications are not of a DC to DC buck boost converter?
As it stands, you have a boost converter and would like to increase the output from 20 to 24Vdc.
Dynamic response from your specifications is 200 µs which equals switching frequency of 5 kilohertz , or how fast your MOSFET’s are turning on and off the output inductor which is switching between the input and the output to provide increase voltage of 20 to 24 Vdc.
The feedback circuit which includes capacitors and inductorsmonitors the output voltage and adjusts the switching frequency and duty cycle to maintain the desired output of 24 Vdc.
As for cost, it’ll be a lot cheaper to buy a module for your specific output application.
Either way you choose I’m behind you. 100%.

 

[SAMyMAS]

Thank you for your wise observations. I had two of these converters, and it would appear I have confused the specs. I didn’t realise the one in subject is just boost as the other was boost/buck (8-40 to 12V). I bought the boost one on eBay a while back, unfortunately the link is no longer available. And I could not find a similar one on internet to check the specifications. As of stated DC-DC in/out of 10V - 16V / 20V, should be correct taken from label and checked at the time of purchase.

I think this could be a good DIY and a learning opportunity along the way.

 

[SAMyMAS]

On a second thought I decided to leave it as is and put it for sell. There will be other opportunity for DIY.

Thank you @Delta Prime and maker.pro community for your support.

 

[Delta Prime]

There will be other opportunity for DIY.

I would be happy to be an unofficial Santa‘s helper.