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Your cart is empty.Product Description
Features:
- Can be connected to the load within 2A, AC or DC input voltage, the output voltage is DC 1.25V-28V continuously adjustable.
- Adopt high-frequency power supply dedicated capacitor, more stable performance.
- Using duplex adjustment potentiometer.
- Add digital tubes to display output voltage, the output voltage is clear at a glance.
- Military grade double-sided circuit board.
- With a heat sink for better heat dissipation.
Package list:
- 1 * Adjustable Voltage Regulator
Note:
- 1. Because the working voltage of digital tubes is 4.5V, it displays normally only when the voltage is higher than 4.5V.
- 2. When inputting 5V, it can output 1.25-2V and won't output a higher voltage.
Specification:
- Input voltage: DC 3-30V / AC 3-20V
- Output voltage: DC 1.25V-28V
- Output current: Max. 2A
- Board size: 72*39*28mm / 2.83*1.53*1.1in
- Mounting size: 65*32mm / 2.56*1.26in
- Mounting hole: 3mm
- Weight: Approx. 43g / 1.5oz
tjmat
Reviewed in the United States on July 24, 2024
Nice supply for protoboard circuits.Worked best with a ac/ac 24v transformer. Less ripple on output.
Ralph M
Reviewed in the United States on March 6, 2024
I bought this to keep some sensitive electronics safe from the higher voltage of some Lithium LIFE batteries in my RV and this works PERFECT.Technical boring part:It has a full wave rectifier bridge on the input that allows both AC and DC voltage input. The problem is that means that are two more diodes of voltage drop if you are using DC input.... that is about 1.5 volts (2 x .75 volts for silicon diode drop. What does that mean? The input voltage has to be around 3.5 to 4.0 volts higher than the output voltage that you need. But that also adds polarity protection in case you hook the DC up backwards.I am making this a permanent install and am careful about hooking up polarity correctly so I'm going to bypass the input bridge to lower the voltage drop to around 2 volts.When the Lithium battery start getting low in voltage the output will be lower than I would like but I would rather have over voltage protection and have to keep the batteries charged up more often.Yes, I could have used a combination buck/boost regulator but after reading some of the reviews I decided this is the best path for my needs.I'm buying a second one for silly bench projects that require odd voltages because I can basically set this to whatever I need.
David K
Reviewed in the United States on September 12, 2023
I was going to use this product to step up 15V AC from a landscape lighting system to 19V DC to charge a battery for an electric gate opener. Unfortunately, the product only put out the exact voltage that was input, 14.6V. It was DC at least.The worst part was when the manufacturer could not help, they offered that I should seek "professional help". I'm not sure if they meant for me or for the product... and they offered me a 20% discount, or around $2 to compensate me for needing help!
Adam
Reviewed in the United States on October 16, 2023
This is a voltage reducer - I think the other review misunderstood this as some kind of booster. I have a decoration with a 12v motor. I wired it to use 12v but also to be able to reduce the speed by using this voltage reducer - and it works just fine. Would be helpful if the +/- was listed on the board but one photo shows output positive/negative - input are the same orientation.
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