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Switch-mode power supplies : spice simulations and practical designs /
Fully updated to incorporate new SPICE features and capabilities, this practical guide explains, step by step, how to simulate, test, and improve switch-mode power supply designs. Detailed formulas with founding equations are included. Based on the author's continued research and in-depth, hand...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | eBook |
| Idioma: | Inglés |
| Publicado: |
New York, New York :
McGraw-Hill Education LLC.,
2008, [2014], ?2014.
|
| Edición: | 2nd edition. |
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Preface
- C. Acknowledgments
- D. Nomenclature
- 1. Introduction to power conversion
- "do you really need to simulate?"
- What you will find in the following pages
- What you will not find in this book
- Converting power with resistors
- Converting power with switches
- The duty ratio factory
- The buck converter
- The boost converter
- The buck-boost converter
- Input filtering
- What i should retain from this chapter
- References
- Appendix 1a?an rlc transfer function
- Appendix 1b?the capacitor equivalent model
- Appendix 1c?power supply classification by topologies
- Appendix 1d?root mean square values of ccm and dcm switching waveforms
- 2. Small-signal modeling
- State-space averaging
- The pwm switch model?the voltage-mode case
- The pwm switch model?the current-mode case
- The pwm switch model?parasitic elements effects
- Pwm switch model in borderline conduction
- The pwm switch model?a collection of circuits
- Other averaged models
- What i should retain from this chapter
- References
- Appendix 2a?basic transfer functions for converters
- Appendix 2b?poles, zeros, and complex plane?a simple introduction
- References
- Appendix 2c?small-signal analysis of the dcm boost converter in voltage mode
- 3. Feedback and control loops
- Observation points
- Stability criteria
- Phase margin and transient response
- Choosing the crossover frequency
- Shaping the compensation loop
- An easy stabilization tool?the k factor
- Feedback with the tl431
- The optocoupler
- Operational transconductance amplifiers
- Shunt regulators
- Small-signal responses with psim and simplis
- What i should retain from this chapter
- References
- Appendix 3a?automated pole-zero placement
- Appendix 3b?a tl431 spice model
- Appendix 3c?type 2 manual pole-zero placement
- Appendix 3d?understanding the virtual ground in closed-loop systems
- 4. Basic blocks and generic switched models
- Generic models for faster simulations
- Operational amplifiers
- Sources with a given fan-out
- Voltage-adjustable passive elements
- A hysteresis switch
- An undervoltage lockout block
- Leading edge blanking
- Comparator with hysteresis
- Logic gates
- Transformers
- Astable generator
- Generic controllers
- Dead time generation
- Short-pulse generators
- List of generic models
- Convergence options
- What i should retain from this chapter
- References
- Appendix 4a?an incomplete review of the terminology used in magnetic designs
- Appendix 4b?feeding transformer models with physical values
- 5. Simulations and practical designs of nonisolated converters
- The buck converter
- The boost converter
- The buck-boost converter
- References
- Appendix 5a?the boost in discontinuous mode, design equations
- 6. Simulations and practical designs of off-line converters ? the front end
- The rectifier bridge
- Power factor correction
- Designing a bcm boost pfc
- What i should retain from this chapter
- References
- Appendix 6a?diode and bulk capacitor current constraints: a different view
- Appendix 6b?a small-signal model of the bcm boost converter power factor corrector operated in voltage- or current-mode control
- 7. Simulations and practical designs of flyback converters
- An isolated buck-boost
- Flyback waveforms, no parasitic elements
- Flyback waveforms with parasitic elements
- Flyback converter operated in quasi-resonance
- Observing the drain signal, no clamping action
- Clamping the drain excursion
- Dcm, looking for valleys
- Designing the clamping network
- Two-switch flyback
- Active clamp
- Small-signal response of the flyback topology
- Practical considerations about the flyback
- Compensating over power
- Standby power of converters
- A 20-w, single-output power supply
- A 90-w, single-output power supply
- A 35-w, multioutput power supply
- Component constraints for the flyback converter
- What i should retain from this chapter
- References
- Appendix 7a?reading the waveforms to extract the transformer parameters
- Appendix 7b?the stress
- Appendix 7c?transformer design for the 90-w adapter
- Appendix 7d?a small-signal model of the flyback converter operated in quasi-resonance
- Appendix 7e?switching losses with a nonlinearly varying parasitic capacitor
- Appendix 7f?testing transformer core saturation level
- 8. Simulations and practical designs of forward converters
- An isolated buck converter
- Reset solution 1, a third winding
- Reset solution 2, a two-switch configuration
- Reset solution 3, the resonant demagnetization
- Reset solution 4, the rcd clamp
- Reset solution 5, the active clamp
- Synchronous rectification
- Multioutput forward converters
- Small-signal response of the forward converter
- A single-output 12-v, 250-w forward design example
- Component constraints for the forward converter
- What i should retain from this chapter
- References
- Appendix 8a?half-bridge drivers using the bootstrap technique
- Appendix 8b?impedance reflections
- Appendix 8c?transformer and inductor designs for the 250-w adapter
- Appendix 8d?a small-signal model for the active clamp forward converter operated in voltage mode control
- Appendix 8e?web content
- A. Conclusion.