Articles - Supply - 8

Figure 1 shows a polarization circuit applicable to ISFET (ion-sensitive field-effect-transistor) sensors. ISFETs are solid-state chemical sensors that measure the pH value of a solution in biomedical and environmental applications, for example. ...

It is not often you get to write a title like the one above. The main methods of generating electricity have been know for years, decades or even centuries. Over that time they have been refined, redesigned, rebuilt with better materials and more ...

ISFETs and MEMFETs (ion-sensitive and membrane FETs) are solid-state chemical sensors that provide an electrical signal associated with the change of a chemical concentration in a solution. These types of sensors need a stable operating point. A ...

Part 1 Three-level (3L) buck off-chip components and their losses Off-chip losses include those across the equivalent series resistance (ESR) in the input, output and flying capacitors, as well as the inductor. Choosing ceramic capacitors with very ...

Introduction Modern portable electronic devices require a high-capacity Lithium-ion battery to power popular features such as high-definition cameras, edge-to-edge high-resolution touchscreens and high-speed data connections. As a result, charging ...

What’s the difference between power and energy density, and why is the former so vital to power-supply design? Let’s find out. To design robust power supplies, designers need to understand some basics and pitfalls. Is power density the ...

Resistive dividers attenuate high voltages down to a level that low voltage circuits can accommodate without getting overdriven or damaged. In power path control circuits, resistive dividers help set up power supply undervoltage and overvoltage ...

Most handheld devices use alkaline or rechargeable batteries, and measuring the battery capacity is a crucial feature of such designs. Most of the time, however, using a battery level monitoring IC may be a luxury for budget-tight projects. Here is ...

Small-scale energy harvesting is often an attractive option for supplemental powering of devices having ultra-low power or low-rate/low duty-cycle needs, such as wearables, wireless IoT sensor nodes, and asset trackers. That’s because the ...

Source: tektonministries.org . LEDs are increasingly being used as energy saving light sources as a response to new energy regulations. They have decisive advantages over conventional lights: they consume less energy, have longer lifetimes, and are ...