Here I show you how do to it. The power supply unit uses switching regulators to maintain a constant supply with good regulation and short circuit protection cause the unit to shutdown and be re-powered immediately if something goes wrong. Therefore if you want a safety ground, you will also connect the green AC ground to your project ground. only downside is that you had to have the charger connected to the power supply output when you turned the socket switch on so that is sensed the load and power on normally. PC power supplies also incorporate a number of internal safety circuits that monitor the power supplies operation: Over Current Protection (OCP), Over Voltage B GSE specializes in all types of power conversion such as 400Hz, … View Profile Contact Supplier.

The "GND" lug (usually green) on a power supply is connected to the power supply chassis and to the AC plug ground. I converted a PC power supply into a power supply for my 300w lipo charger but had to solder all the 12v output wires together (yellow ones) and all the ground together. Most power supplies come with an AC power input connection that incorporates line (L), neutral (N), and earth (E) connections. All that you have is a PSU from an old PC an a wire. An old PC power supply unit makes an excellent and cheap bench top power supply for the electronics constructor. A faulty PC power supply belies many intermittent computer problems. The PC doesn’t power on at all; Spontaneous restarts or lockouts when trying to use the machine; Case fans and hard drives that do not spin; An overheating system … Maybe in some cases you want to test an old CD-Rom Drive or something else. As noted in this schematic of a typical power supply, AC and DC ground connections are isolated from one another. This connection, typically, is not related to the red/black outputs.

: In this instructable i will show you how to power up an ATX Power Supply without a PC. System failures during the boot-up process. Bertoli srl Ground Power Units (GPU’s) for Airports / Generating Sets / Floodlight Units. 400Hz, 270VDC, 28VDC, Aircraft PC Air, POP-UP PITS, Contracting. This is why experienced PC technicians often look first at the PSU when diagnosing PC hardware issues. I permanently soldered the green wires . B GSE Group is a Tier 1 systems supply integration company. How to Power Up an ATX Power Supply Without a PC!