July/August 2023

Electromobility (e-mobility) – the move away from using internal combustion engines in cars, bikes, buses, trucks, and so on – requires batteries to store and release power. The properties of a battery, or rather a battery pack, are therefore largely r …

High Eye is a drone manufacturer based in Dordrecht, The Netherlands. In 2021 it launched the Airboxer VTOL unmanned aerial vehicle (UAV), a long-range drone with a single three-bladed rotor that quickly gained popularity in the market, due to its smal …

Sensors are increasingly being used in a growing number of everyday applications to collect data, for analysis and process improvements. This is particularly true in industrial automation, access control, security systems and healthcare, among many oth …

Cars, trucks, buses and motorcycles makers are rapidly electrifying their vehicles to increase the fuel efficiency of internal combustion engines and reduce CO2 emissions. There are many electrification choices, but most opt for a 48V mild-hybrid syste …

UK-based Hanover Displays manufactures and designs passenger information systems for the public transport industry, placing great emphasis on providing very high quality products. The printed circuit boards (PCBs) in its display panels were originally …

The half-wave rectifier circuit is essential to most AC-to-DC converters. Because of the benefits it offers, this circuit based on op-amps is more popular than conventional rectifiers. One such advantage is that it provides reasonable over-voltage prot …

The TTL crystal oscillator circuit is one of the simplest circuits electronic circuit designers can build; see Figure 1. However, despite its simplicity and stable performance, it has a fundamental problem – it can’t generate a pure sinusoidal signal, …