Frequency Compensation of Sense Amplifiers
Switching Converter Configurations
Making Sense of Sense Resistors: Temperature Effects
Making Sense of Sense Resistors: Parasitic Series Inductance - Frequency Sweep Measurement
Making Sense of Sense Resistors: Parasitic Series Inductance - Pulse Response Measurement
The Cuk and SEPIC (and Zeta) Transformer: How It Works
 | What is usually most difficult to understand about Cuk, SEPIC, and zeta converter topologies is how the transformer functions. This explanation starts with a familiar resistive divider network analogous to the transformer model. |
| One category of "being stuck" has to do with being fooled – thinking that the data is saying something that it is not. This magnetics problem is posed as a quiz. |
| A PFC keeps the power grid free of extraneous electrical noise by presenting a resistive load to it. |
PFC Multipliers: How the Translinear Multiplier Works
PFC Multipliers: Simulated Multiplier Performance
PFC Multipliers: Measured Multiplier Performance
A Short-Course on Motor Theory for Electronics Designers
- a tutorial on how permanent-magnet synchronous ("brushless dc") motors work, from the perspective of motor-drive design.Part 1
Motor Theory
Part 2
Motor Electrical Model
Part 3
Six-Step Phase Control
Part 4
Power-Driver Design
Field-Oriented Step-Motor Control
| Most step-motors are permanent-magnet synchronous motors that can produce the performance of a "servo" motor when driven with field-oriented control. This article includes winding-sensed ("sensorless") control theory, which uses the motor induced voltage to sense rotor position, thereby eliminating shaft encoders and other position sensors. |
Phase Control of Delta-Configured Motors
| Under which operating conditions will maximum mechanical power from a motor be achieved? |
Motor Efficiency
| Analysis of motor efficiency, for motor and drive losses, and with a square-law (fan) load. |
Part 1
Motor-Loss Efficiencies
Part 2
Drive-Loss Efficiencies
Part 3
Square-Law Load Efficiencies
Baby Dynamometer Project
| an on-going Design Center project to design and build a low-cost instrument to measure motor torque, speed and mechanical power. |
| how ultra-cheap dc brush motors can be analyzed for winding induced-voltage
waveforms from motor geometry. |
