Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an EFM8 microcontroller, a DAC, and the…
Invoke the power of the PID (proportional–integral–derivative controller)! The key components in this design are an EFM8 microcontroller, a DAC, and the MAX31855 thermocouple-to-digital converter.
Ever wanted to find out more about Class D amplification? Here's a handy breakdown.
Ever wanted to find out more about Class D amplification? Here's a handy breakdown.
An AC-DC wall adaptor gets disassembled to see what components are used to build it, then the purpose of each component…
An AC-DC wall adaptor gets disassembled to see what components are used to build it, then the purpose of each component is analyzed.
The buck converter is a ubiquitous DC-DC converter that efficiently converts a high voltage to a low voltage efficiently.…
The buck converter is a ubiquitous DC-DC converter that efficiently converts a high voltage to a low voltage efficiently. Efficient power conversion extends battery life, reduces heat, and allows for smaller gadgets to be built. The buck converter can be used in lots of cool applications.
What linear voltage regulator circuits lack in efficiency, they make up in simplicity and low noise. Here's a scheme for…
What linear voltage regulator circuits lack in efficiency, they make up in simplicity and low noise. Here's a scheme for 9 voltages from 2.5V to 15V on the same PCB design.
This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel…
This analog design allows your LEDs to respond to your music. Just plug your music source into this which sends a channel to your sound system and some LEDs.
This article provides practical guidance on using ferrite beads to improve your PCB’s power quality.
This article provides practical guidance on using ferrite beads to improve your PCB’s power quality.
Learn all about Thevenin's Theorem and its application in analyzing circuits with dependent sources.
Learn all about Thevenin's Theorem and its application in analyzing circuits with dependent sources.
This article reviews the basics of finding Thevenin and Norton equivalents and discusses how to apply Thevenin's theorem…
This article reviews the basics of finding Thevenin and Norton equivalents and discusses how to apply Thevenin's theorem to a practical circuit.
Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266…
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.
New tunable capacitors from STMicroelectronics are meant to optimize signal-power transfer between a smartphone's antenna…
New tunable capacitors from STMicroelectronics are meant to optimize signal-power transfer between a smartphone's antenna and power amplifier. Other improvements include lower parasitic resistance and inductance, which boost efficiency and reduce heat dissipation, and a higher ESD rating for greater robustness.
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.
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