Articles - Supply - 9

Increasing the output voltage of IC operational amplifiers usually involves adding high-voltage external transistors. The resulting circuit then requires correction to retain its operating characteristics. This correction is difficult, especially ...

Justin Larson,Frank Kolanko EDN Buck regulators operating in CCM (continuous-conduction mode) have straightforward operation, allowing for easy calculation of output voltage and system design. However, lightly loaded buck regulators operate in DCM ...

Switching regulators use a duty cycle to realize voltage or current feedback control. The duty cycle is the ratio of the turn-on time (T ON ) to the complete cycle length, the turn-off time (T OFF ) plus on time, and defines a simple relationship ...

Electromagnetic compatibility and oftentimes PCB trace routing are key participants in the switching-regulator hot-loop phenomenon. The term hot loop is relevant whenever switching regulators and their electromagnetic compatibility (EMC) are ...

Sam Davis Power Electronics A collaborative research project is making use of temperature fluctuations to produce electricity. Generating electricity in unique ways is getting the attention of scientists at the University at Buffalo and MIT. ...

The flyback topology is a versatile, widely used, switched-mode power-supply design with some interesting characteristics that brings performance and BOM advantages to many applications. The flyback design is a switched-mode power supply (SMPS) ...

Applying the physics principle of radiative sky cooling, a team was able to harvest a small but useful amount of energy from the cool night sky using a simple, low-cost, non-critical arrangement. Approaches to harvesting “free” energy ...

David Megaw and Bruce Haug, Analog Devices Design Note Introduction A common dc-to-dc converter problem is generating a regulated voltage when the input voltage can be above, below, or equal to the output that is, the converter must perform both ...

Question: Where should the coil go? Answer: Switching regulators for voltage conversion use inductors for temporarily storing energy. These inductors are often very large components and must be positioned in the printed circuit board (PCB) layout ...

I worked on a quasi-resonant energy converter, which in an extremely simplified form looked like the one shown in Figure 1. Figure 1. This is a simplified design for a quasi-resonant push-pull inverter. A push-pull pair of power MOSFETs would turn ...