30 V - 5 A Power Supply: "To Each His Own"

I found two videos on the small Peaktech 6225 desktop power supply which examine it closely and arrive at pretty much the same conclusions. The more interesting of the two is obviously that which goes a bit further with the criticism, while frankly highlighting the strengths and not glossing over the weaknesses. And finally weighs the judgement, to present an honest picture.

IoT is not only about sensors in a world that remains physical IoT is also influencing the environment. From automatic door locks, HVAC vents and window shades over connected e-Bikes and even electric skateboards, the IoT is also actuators and drives. Most of them battery powered and connected. With the new development center in Tallinn, Trinamic launches a Lab dedicated to motor control in connected devices.

Electronic measurements stretching beyond pure measuring of voltage or current, in general require extra instruments beside the standard meters. Keithley | Tektronix have combined these instruments into a single package.

Commercially available laboratory power supplies often have disadvantages regarding the user interface, the performance or the price.In this project a laboratory power supply module with the following commonly used output characteristics is developed:

Commercially available laboratory power supplies often have disadvantages regarding the user interface, the performance or the price.In this project a laboratory power supply module with the following commonly used output characteristics is developed:

Electrostatic discharge in a workshop or laboratory can lead to a great deal of damage. Even the electrostatic charge on the human body can give rise to voltages of up to 20 kV. Most semiconductors and integrated circuits can not with stand such potentials. With the meter described in this article the presence of unwanted electrostatic charges can be detected so that protective measures can be taken.

Phase meters are rare instruments, even in the laboratory or workshop of audio and hi-fi engineers and enthusiasts. Perhaps that is because until the advent of reliable digital techniques it was fairly difficult to design an accurate direct-reading phase meter. In one commercial catalogue published in the 1970s, a phase meter is advertised as having "an accuracy of about 3 degrees from 10 Hz to 30 kHz". Clearly, for modern audio equipment, that is no longer acceptable. Another reason may be that a phase meter is a fairly specialized instrument: many engineers and technicians measure phase shift with the aid of Lissajous figures ( which do not give very accurate results either). The phase meter presented in this article is accurate to within 0.5° over the frequency range 10 Hz to 20 kHz.

Before dealing with the construction of the PSU, this second and final instalment discusses the operation of the four modes in which the instrument can be used.

Here is an all-purpose d.c. power supply tor symmetrical as well as asymmetrical use, and capable ot supplying high output currents and voltages. An all-analogue design based on discrete parts only, this 400-watt PSU deserves a prominent place on your work bench.

Until recently, isolating amplifiers were generally accessible to professional engineers only. These integrated circuits, widely used in laboratory and industrial measuring instruments, were simply too expensive for amateurs. Now, Burr Brown have available aseries of isolating devices that, without any relaxation of specification, are available at prices that are affordable for most.