WeiKedz 3in1 0-30V 2mA - 3A Adjustable DC Regulated Power Supply DIY Kit + Radiator Aluminum Heatsink+Cooling Fan
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- Including a circuit to limit output current which enables output current to be continuously adjustable from 2mA to 3A
- Easy to install and maintain
- Output Voltage: 0-30V ;Output Current: 2mA-3A (continuously adjustable)
- Best packing and fast delivering.
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information download link: www77.zippyshare.com/v/E55KSgcn/file.html Description:
This circuit voltage can be from 0 v, output current can be ma from 2 to 3 a continuously adjustable, set the output current, if the experiment circuit exceeds the current (including short circuit), the circuit protection immediately, not cause danger such as burning device, it is electronic manufacture's right-hand man. It is never afraid of the fireworks! Like making all kinds of audio circuit friend, often due to the different working voltage and circuit have a headache, this circuit can also two series into a dual power supply, can meet the needs of all sorts of use.
Input voltage: 24V AC
Input current: 3A maximum
Output voltage: 0 to 30V continuous adjustable
Output current: 2mA - 3A continuously adjustable
output voltage ripple: minimum 0.01%
All straight inserted element, make easy, only an adjustable components ( used to adjust the voltage of 0 v )
LED indicator for output over current, when the current exceeds the set data circuit protection, LED lighting, over load and short circuit protection Minimum current (2mA) under the measurable leds and zener diode
Power production belongs to the high voltage large current circuit, please be sure to carefully, otherwise may cause harm to the personal safety
1 x Adjustable DC Regulated Power Supply DIY Kit
1 x Radiator Aluminum Heatsink
1 x Cooling Fan
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It is obviously very cheap but seems to do the job. I needed a supply to output around 15V dc but I wanted to limit it to 100ma. This supply does just that. Also, since it uses a inexpensive transformer ( https://www.amazon.com/Elk-TRG2440-24VAC-Transformer-Fuse/dp/B0007N5LJK ) it provides isolated power. The fan is overkill but a nice addition if I ever need to run it at more power.
Documentation was minimal but to set it you turn both pots to the left full, short the output of the power supply through your current meter, move the voltage pot all the way to the right, then slowly move the current pot to the preset current limit you need. Disconnect the current meter and reconnect it to measure voltage across the output, then move the voltage pot down to the voltage you need. Now when you connect your circuit it will be protected from current above your set limit. The pots are bit sensitive at lower current but they stay where you put them.
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