Like the takeoff and landing phases for aircraft, the startup and shutdown phases for a power supply can be critical. Control logic must be in the correct state before power is applied to high-power switching components. We had this driven … Read More
Follow along with us as we share our experiences in the industry - the highs, the lows, and everything that falls in between.
Before the invention of the silicon diode, designers had the choice of germanium point contact diodes for low currents, copper-oxide rectifiers in instruments, and selenium rectifiers for power applications. The selenium rectifier replaced the vacuum tube rectifier in … Read More
One of our projects is to measure the luminance (brightness) of various sources of light pollution, using a digital camera. To do that, you need a calibrated source of luminance. It turns out that a low-cost purpose-made light integrating sphere … Read More