Whether its buck, boost, or buck/boost, internal or external switch, milliamps or tens of amps, a literal cornucopia of programmable output switching regulator/converter chips are commercially available. While the required external Ls and Cs (of ...
Inverting buck-boost circuits are commonly used for generating negative supply voltages from positive voltages. The most important step is ensuring that the negative voltages are generated correctly. However, additional level shifting circuits may ...
Designers tend to favor forward- and flyback- converter topologies for loads less than 200 W because they are simple and can power multiple isolated outputs. Their simplicity is partially based on the fact that these converters use a single ...
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 ...
Modern day recording and broadcast is a mixed bag for today's audio engineers when it comes to input signal chains. Microphone electronic technology really hasn't changed that much over the last 50 years. The concept is mostly based around ...
Dr. Goodenough received a Nobel Prize at the age of 97 for his contributions to making the Lithium-ion battery a reality. Figure 1. Dr. John B. Goodenough with a Li-ion battery. In 2019, at the age of 97, Dr. John B. Goodenough became the oldest ...
The concept of using supercapacitors (also known as ultracapacitors, supercaps, etc.), and replacing the batteries in portable micropower applications ( Ref. 1 ) is gaining momentum. In fact, it has become one of the more noticeable technical ...
With the addition of a few inexpensive miniature components, the hard-wired, voltage-controlled current source of yesterday becomes a software-programmable voltage-controlled current source (Figure 1). A digital potentiometer, IC 1 in conjunction ...
Designers charged with creating precision analog front ends and signal chains know that the performance of the voltage reference whether a discrete standalone device or one that’s embedded in a component such as the analog-to-digital ...
Sometimes it’s necessary to drive a resistive load such as an incandescent bulb or heating element from a DC voltage that’s higher than the nominal load voltage. An example would be driving a 6.3-V, Type 47 bulb from an 18-V DC power ...