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Thermal design
Simulation
Switching Noise
Transfer Function
Thermal design
About Thermal Design
Changes in Engineering Trends and Thermal Design
A Mutual Understanding of Thermal Design
Fundamentals of Thermal Resistance and Heat Dissipation: Heat Transmission and Heat Dissipation Paths
Fundamentals of Thermal Resistance and Heat Dissipation: About Thermal Resistance
Fundamentals of Thermal Resistance and Heat Dissipation : Thermal Resistance in Conduction
Fundamentals of Thermal Resistance and Heat Dissipation : Thermal Resistance in Convection
Fundamentals of Thermal Resistance and Heat Dissipation : Thermal Resistance in Emission
Thermal Resistance Data: JEDEC Standards, Thermal Resistance Measurement Environments, and Circuit Boards
Thermal Resistance Data: Actual Data Example
Thermal Resistance Data: Definitions of Thermal Resistance, Thermal Characterization Parameters
Thermal Resistance Data: θJA and ΨJT in Estimation of TJ: Part 1
Thermal Resistance Data: θJA and ΨJT in Estimation of TJ: Part 2
Estimating TJ: Basic Calculation Equations
Estimating TJ: Calculation Example Using θJA
Estimating TJ: Calculation Example Using ΨJT
Estimating TJ: Calculation Example Using Transient Thermal Resistance
Estimation of Heat Dissipation Area in Surface Mounting and Points to be Noted
Surface Temperature Measurements: Thermocouple Types
Simulation
Foundations of Electronic Circuit Simulation Introduction
About SPICE
SPICE Simulators and SPICE Models
Types of SPICE simulation: DC Analysis, AC Analysis, Transient Analysis
Types of SPICE simulation: Monte Carlo
Convergence Properties and Stability of SPICE Simulations
Types of SPICE Model
SPICE Device Models: Diode Example–Part 1
SPICE Device Models: Diode Example–Part 2
SPICE Subcircuit Models: MOSFET Example―Part 1
SPICE Subcircuit Models: MOSFET Example―Part 2
About Thermal Models
About Thermal Dynamic Model
SPICE Subcircuit Models: Models Using Mathematical Expressions
Summary
About the ROHM Solution Simulator
How to Access the ROHM Solution Simulator
Trying Out the ROHM Solution Simulator (1)
Trying Out the ROHM Solution Simulator (2)
Starting a Simulation Circuit in the ROHM Solution Simulator
ROHM Solution Simulator Toolbar Functions and Basic Operations
ROHM Solution Simulator: User Interface
Execution of Simulations
Method for Displaying Simulation Results
Simulation Result Display Tool: Wavebox
Simulation Results Display Tool: Waveform Viewer
Customization of Simulations
Optimization of PFC Circuits
PFC Simulation Circuits Using Solution Circuits
PFC Circuits: Inductance Adjustment
PFC Circuits: Adjustment of Switching Frequency
PFC Circuits: Examination of Appropriate Gate Driving Voltages
PFC Circuits: Changing the Gate Resistance
PFC Circuits: Examination of Optimum Dead Time Values
Summary
Switching Noise
What is EMC?
Basics of Spectrum
Differential (Normal) Mode Noise and Common Mode Noise-Causes and Measures
What is Crosstalk?
Noise Occurring in Switching Power Supplies
Procedures in Noise Countermeasures
Basics of Noise Countermeasures in Switching Power Supplies
Input Filters for Switching Power Supplies
Dealing with Noise Using Capacitors
Understanding the Frequency Characteristics of Capacitors, Relative to ESR and ESL
Measures to Address Noise Using Capacitors
Effective Use of Decoupling (Bypass) Capacitors Point 1
Effective Use of Decoupling Capacitors Point 2
Effective Use of Decoupling Capacitors, Other Matters to be Noted
Effective Use of Decoupling Capacitors, Summary
Dealing with Noise Using Inductors
Frequency-Impedance Characteristics of Inductors and Determination of Inductor’s Resonance Frequency
Basic Characteristics of Ferrite Beads and Inductors and Noise Countermeasures Using Them
Dealing with Noise Using Common Mode Filters
Points to be Noted: Crosstalk and Noise from GND Lines
Summary of Dealing with Noise Using Inductors
Other Noise Countermeasures
RC Snubber Circuit
Basics of EMC – Summary
Transfer Function
What are transfer functions?
What are transfer functions? – Basic Approach to Transfer Functions and their Derivation
What are transfer functions? – Kirchhoff’s Laws and Impedance
What are transfer functions? – Frequency Characteristics of Transfer Functions
What is transfer function?
What is the Transfer Function of an Amplifier?
Derivation of the Transfer Functions for Error Amplifiers, Voltage Amplifiers, Current Amplifiers
Amplifier Virtual Short
What is the Transfer Function of a Slope?
Voltage-Mode Transfer Functions
Consideration of Current Mode
Summary of Current Mode Transfer Functions and Various Modes
Derivation of Fm in Current Mode
Analytic Solution for Subharmonic Oscillation
The Reason Why Compensation Ramp Slope Must Be At Least 1/2 Down Slope
What is the switching transfer function?
What is State-Space Averaging Method?
State-Space Averaging Method - Static Analysis
State-Space Averaging Method - Dynamic Analysis
State-Space Averaging Method - From Another Viewpoint
Effect of the ON-Resistance of a Switch on the Transfer Functions
Transfer function of each converter
Switching Transfer Functions: Derivation of Step-down Mode Transfer Functions Serving as a Foundation
Example of Derivation for a Step-Down Converter
Example of Deviation for a Step-up Converter
Example of Derivation for a Step-Up/Step-Down Converter – 1
Example of Derivation for a Step-Up/Step-Down Converter – 2
Example of Derivation for a Step-Down Converter
Example of Derivation for a Step-Up/Step-Down Converter – 1
Example of Derivation for a Step-Up/Step-Down Converter – 2
Switching Transfer Functions: Derivation of Step-down Mode Transfer Functions Serving as a Foundation
New Articles
Surface Temperature Measurements: Thermocouple Types
2023/02/22
Customization of Simulations
2023/02/22
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