James

Isolated power supplies explained: why isolation matters, which topologies suit which power level, and the design choices that decide safety and EMI.

In power electronics, a high-speed driver usually means a high-speed gate driver: a circuit that translates a controller’s command into the gate voltage and brief charging or discharging current required by a power transistor. It helps a MOSFET or IGBT change state at the intended time and transition rate. It is not the power switch … Read more

Industrial applications of power semiconductors include motor-speed control, regulated power supplies, backup conversion, welding, induction heating and battery formation. The devices switch, rectify or direct electrical energy so equipment can deliver a controlled output. A factory motor drive and a battery tester can use similar component families while demanding very different waveforms, accuracy and protection. … Read more

A switching power supply converts electrical power by repeatedly switching semiconductor devices on and off, transferring energy through inductors, transformers or other storage elements. A feedback controller adjusts the switching behavior to maintain the required output. SMPS means switched-mode power supply; it can take AC or DC input, depending on its design. The familiar examples … Read more

The thin metallic lines on a solar cell collect current that would otherwise have to travel farther through resistive layers. Solar silver paste is the printable material used to form many of those contacts. Its value comes from the contact it creates and the grid it can print: low electrical resistance, controlled shading, dependable adhesion … Read more

Schottky bypass diode modules: how they protect shaded PV cells, what the forward drop costs, and how to select by voltage, surge and thermal design.

A solar inverter converts the DC electricity produced by photovoltaic panels into AC electricity for suitable loads or the grid. It uses controlled semiconductor switches, sensing and filtering to manage that conversion. Many PV inverters also control the panels’ operating point through maximum power point tracking, or MPPT. Grid-connected and backup-capable inverters have different operating … Read more