Adding variable speed control and battery monitoring to a Power Wheels truck!
Adding variable speed control and battery monitoring to a Power Wheels truck!
ZigBee, Bluetooth and the newer Bluetooth Low Energy (BLE/Smart) are all communication protocols for Wireless Personal…
ZigBee, Bluetooth and the newer Bluetooth Low Energy (BLE/Smart) are all communication protocols for Wireless Personal Area Networks (WPANs), but they are optimized for different applications.
Handling heat in electronics. Which components create heat, which components suffer from heat. Basics of heatsinking.
Handling heat in electronics. Which components create heat, which components suffer from heat. Basics of heatsinking.
An in-depth look at transformer isolation. Electrical isolation is necessary to protect circuits, equipment, and people…
An in-depth look at transformer isolation. Electrical isolation is necessary to protect circuits, equipment, and people from shocks and short circuits, as well as to make accurate measurements. Isolation transformers are one way to go.
A handy technical article demonstrating filter inductor design for boost converters, design of the coupled inductor for a…
A handy technical article demonstrating filter inductor design for boost converters, design of the coupled inductor for a two-output forward converter, and the design of flyback transformer in continuous conduction mode.
Qi (pronounced as "chee") charging is an optimized inductive charging concept also known as “wireless charging,”…
Qi (pronounced as "chee") charging is an optimized inductive charging concept also known as “wireless charging,” allowing you to charge your devices wirelessly. Compatible devices’ batteries are charged by using induction transfer without requiring separate chargers, cables or adapters... Simply place your compatible device on top of the wireless pad and watch your device charge. Finally--an end to cords!
The effect of noise and Power Supply Rejection Ratio (PSRR) in Low-dropout (LDO) regulators.
The effect of noise and Power Supply Rejection Ratio (PSRR) in Low-dropout (LDO) regulators.
Learn about various power electronic devices which act as solid-state switches in the circuits, meaning they act as a…
Learn about various power electronic devices which act as solid-state switches in the circuits, meaning they act as a switch without any mechanical movement.
List of common converters and calculations of switch stresses/utilization are presented in this article. Converter design…
List of common converters and calculations of switch stresses/utilization are presented in this article. Converter design with the aid of computer spreadsheet is also shown here. A short list of converters is provided based on the basic topologies and circuit manipulations of the converters discussed on other technical articles.
Different circuit connections are explored here. For instance, an inversion of source and load converts the buck…
Different circuit connections are explored here. For instance, an inversion of source and load converts the buck converter into a boost converter, the cascade connection of the converters leads to the formation of the buck-boost, and the Cuk converter from the basic buck and boost converters.
Discussed here are the discontinuous conduction mode, mode boundary, and conversion ratio of simple converters.
Discussed here are the discontinuous conduction mode, mode boundary, and conversion ratio of simple converters.
An analysis of the concepts and variables associated with state-space, canonical and system transfer function…
An analysis of the concepts and variables associated with state-space, canonical and system transfer function representations of the common converters. In direct circuit linearization averaging technique, dynamic behavior of the circuit cannot be studied at the resonant frequency as the switching frequency component of the output for the resonant converter is different from the local average value frequency. Thus, the integral expression of the average value needs to be extended using the Fourier series; and the derivative expression with respect to a particular frequency is required for the dynamic analysis.
This technical article deals with the analysis of the four fundamental DC-DC converters (or choppers) in equilibrium. The…
This technical article deals with the analysis of the four fundamental DC-DC converters (or choppers) in equilibrium. The four basic DC-DC converters considered for analysis are the following: Buck Converter, Boost Converter, Buck-Boost Converter and Ćuk Converter.
We review switching losses involving diode recovery charge, transistor switching with clamped inductive load, device…
We review switching losses involving diode recovery charge, transistor switching with clamped inductive load, device capacitance and leakage, package, and stray inductances, and the efficiency versus switching frequency curve.
Pulse-width modulation can be of many forms. A PWM signal of constant frequency can be obtained by comparing the ramp…
Pulse-width modulation can be of many forms. A PWM signal of constant frequency can be obtained by comparing the ramp signal (or carrier signal) with the error between the desired and the actual output voltage signal (Vc, compensator voltage signal).
The core concept of power processing can be explained together with several significant applications of power…
The core concept of power processing can be explained together with several significant applications of power electronics. Power electronics is the technology of processing and controlling the flow of electric power by modifying and supplying the voltage and current in a form that is best suitable to the customer at the load end.
The basic converters complete equivalent circuits can be studied here which include the basic AC modeling approach and…
The basic converters complete equivalent circuits can be studied here which include the basic AC modeling approach and the results for several converters. A simple circuit diagram is used for high-frequency converters. We will construct the non-linear model and convert it into a linear circuit that describes the small-signal performance of a circuit.