0000230: Bench power source adjustable in UPS housing

ID	Project	Category	View Status	Date Submitted	Last Update

0000230	Microcontrollers, shields, automation, arduino	[All Projects] General	public	2017-05-14 15:51	2020-09-22 14:36

Reporter	DigitalMy
Priority	normal	Severity	minor	Reproducibility	have not tried
Status	assigned	Resolution	open

Summary	0000230: Bench power source adjustable in UPS housing
Description	Make adjustable DC power supply with current limit. Add voltmeter and ammeter on front panel Add USB port +5.0V for charger Add fan controlled by temperature (default = off) power source - AC220V with switch on back side Target: multi function device with AC sockets before planned locate in shortened DVDRW housing, but it has no transformator space
Tags	No tags attached.

DigitalMy 2017-05-14 21:40 administrator ~0000521	Use mini meters (0.28") H=10mm V20D-2P, not 0.36" H=13-15mm (like regular sized DSN-DVM-368).

DigitalMy 2017-05-15 08:34 administrator ~0000522 Last edited: 2019-06-05 23:52 View 7 revisions	Used 3A DIY kit regulator "0-30V PSU" without diode rectifier. It will not work like this, needs AC power. Chip TL081CP next to 100K adjustable resistor 3296, overheating on DC power input or in case solder something wrong, but it works in case AC24V input and correct soldering. So, we have transformer from UPS (APC 700VA) and its body (Back-UPS ES700): use it. Transformer from this UPS (in ~220V) gives 2 outs: 1st: ~23V -> use for kit power supply (gives almost 0-29V DC) 2nd: 7.3V+7.3V=14.6V -> use for battery charger , add diode bridge and DC-DC adapter for 5V socket and microcontroller: Use WiFi board for original 12V relay control AC sockets

DigitalMy 2018-02-25 22:18 administrator	PS30V_KIT_04.jpg (67,142 bytes) PS30V_KIT_04.jpg (67,142 bytes)

DigitalMy 2020-09-22 14:28 administrator ~0003977 Last edited: 2020-09-22 14:36 View 2 revisions	Got new version board similar to PS30V adjustable range 00V - 30V 00A - 03A Soldered 2020-09-22 DIY_PS30V_2016_version_PS30V.jpg (154,800 bytes) DIY_PS30V_2016_version_PS30V.jpg (154,800 bytes)