Articles - Power

The low- to moderate-power system in Figure 1 provides the interface between a pulse-width modulator and a high-side IGBT (insulated-gate-bipolar-transistor) or MOSFET switch. You can use it to interface TTL or CMOS circuitry to an H-bridge if you ...

Introduction Wide bandgap power semiconductor devices like Silicon Carbide (SiC) MOSFETs are enjoying growing popularity in many modern power electronic applications like E-mobility and renewable energy. Their extremely fast switching speed ...

Relays are common electromechanical devices in electrical circuits that come in two types: either latched or non-latched. Latched relays retain their last switch position even after complete power loss and are available in either single coil or ...

Brushless DC (BLDC) motors transform electrical power into mechanical power. However, there’s no such thing as a perfect motor; there are always losses in the transformation. The three main types of losses created during the conversion are ...

These days, much of the news coverage and discussion in the semiconductor industry is about devices based on the new wide bandgap (WBG) materials such as silicon carbide (SiC) and gallium nitride (GaN) The medium-to-high power applications that ...

Here are some simple tips for servo systems that may improve productivity and prevent costly downtime. To help engineers and design teams get all the performance possible from servo systems, here are some of the more troublesome servo predicaments ...

They both have advantages and limitations. So which one is right for your application? It is an engineering truism that there is no such thing as a perfect solution just the best solution for the problem at hand. That holds particularly true for ...

Ask a power converter designer what they want from a semiconductor switch and the answer might be something like: “Low on-resistance, high off-resistance, and the fastest possible transition between the two states”. The idea of course, ...

We very often see flocks of birds perched in trees, on rooftops, on local power line wires, and even on radio antennas. Figure 1. Birds often perch on antennas. However, I have noticed that I never see birds coming to rest on high-tension power ...

Question: Where do I connect the grounds of switching regulators? Answer: How should you proceed with a switching regulator with an analog ground (AGND) and a power ground (PGND)? This is a question asked by many developers designing a switching ...