Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266 modules running NodeMCU using MQTT.
Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266 modules running NodeMCU using MQTT.
Proper component selection and careful PCB layout are integral to power supply bypassing.
Proper component selection and careful PCB layout are integral to power supply bypassing.
A thorough understanding of bypass capacitors will help you to properly incorporate these critical components into your designs.
A thorough understanding of bypass capacitors will help you to properly incorporate these critical components into your designs.
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 introduction to the properties and purposes of a negative resistance device. Later articles will extend to negative…
An introduction to the properties and purposes of a negative resistance device. Later articles will extend to negative impedances and some applications.
Part 3 in the “How to Make an Ambient Light Monitor” series. The project continues by building an ambient light…
Part 3 in the “How to Make an Ambient Light Monitor” series. The project continues by building an ambient light sensor circuit on a breadboard, digitizing the circuit’s output signals, and interpreting the digitized measurements.
How to interface a Raspberry Pi to an I2C temperature sensor (TMP102) and then publish the data to a Google sheet and graph.
How to interface a Raspberry Pi to an I2C temperature sensor (TMP102) and then publish the data to a Google sheet and graph.
This article describes the technical aspects of Performing Mesh analysis with Dependent Sources.
This article describes the technical aspects of Performing Mesh analysis with Dependent Sources.
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.
The LM35 is an ideal temperature sensor for measuring ambient temperature. It provides a linear output proportional to…
The LM35 is an ideal temperature sensor for measuring ambient temperature. It provides a linear output proportional to the temperature, with 0 V corresponding to 0 degrees C and an output voltage change of 10 mV for each degree C change. LM35s are easier to use than thermistors and thermocouples because they are so linear and require no signal conditioning.
This article explains how to measure a resistance value, even if the resistor cannot be removed from its circuit.
This article explains how to measure a resistance value, even if the resistor cannot be removed from its circuit.
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.
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.
When an AC current flows through a conductor, outer filament of that conductor carries more current as compared to the…
When an AC current flows through a conductor, outer filament of that conductor carries more current as compared to the filament closer to its center. This results in higher resistance to AC than to DC and is know as skin effect. Proximity effect, the alternating flux in a conductor is caused by the current of the other nearby conductor.
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.