BUS PIRATE: 0.8-5.0volt programmable output power supply

MOSI CLOCK MISO CS AUX AUX2 (formerly ADC) Vpu 3.3V 5.0V GND After adding buffered voltage measurements to every IO pin, we eliminated the dedicated ADC pin and turned it into a general purpose IO (AUX2). Now we’re going to take a hatchet to the on-board voltage regulators (3.3V, 5.0V) and replace them with a […]

App note: Programmable power supplies

Apex Microtechnology’s application note about programmable power supplies. Link here (PDF) The programmable power supply (PPS) is not only a key element in automated test equipment, but it is also used in fields as diverse as industrial controls, scientific research and vehicular controls. When coupled to a computer, it bridges the gap from the software […]

Amrel PPS-2322 programmable power supply teardown

Kerry D. Wong did a teardown of a Amrel PPS-2322 programmable power supply: I picked up an Amrel PPS-2322 programmable power supply from eBay recently. You probably have not heard of the Amrel brand before as American Reliance (Amrel) no longer makes power supplies nowadays. Its power supply division was acquired by AMETEK Programmable Power, a subdivision […]

Guest review: Atten PPS3203T 3 channel 3A programmable power supply

JuKu wrote about his latest purchase, the Atten PPS3203T 3 channel 3A programmable power supply. It features 2 0-32v channels and a single 0-6V channel, as well asRS-232 and GPIB (IEEE 488.2) interfaces. I wanted an economical three output power supply (+- 15V or so for analog, 5V or 3.3V for digital) with voltage and […]