* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Switched-mode power supply charger
Power engineering wikipedia , lookup
Ground loop (electricity) wikipedia , lookup
Mercury-arc valve wikipedia , lookup
Transformer wikipedia , lookup
Spectral density wikipedia , lookup
Solar micro-inverter wikipedia , lookup
Stray voltage wikipedia , lookup
History of electric power transmission wikipedia , lookup
Electrical substation wikipedia , lookup
Oscilloscope history wikipedia , lookup
Analog-to-digital converter wikipedia , lookup
Transformer types wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
Voltage regulator wikipedia , lookup
Three-phase electric power wikipedia , lookup
Distribution management system wikipedia , lookup
Voltage optimisation wikipedia , lookup
Variable-frequency drive wikipedia , lookup
Alternating current wikipedia , lookup
Power inverter wikipedia , lookup
Mains electricity wikipedia , lookup
Buck converter wikipedia , lookup
Opto-isolator wikipedia , lookup
Switched-mode power supply charger For an electric car Aarne Liski Atte Yrjölä Jere Kinnunen Background Switched-mode power supply • 230V AC input 1. Rectified 2. H-bridge generates square wave voltage 3. Transformer provides galvanic isolation and it also alters the voltage and current levels supplied from the inverter 4. Full-Wave Bridge Rectifier 5. LC filter to get rid off the ripple in the output waveform DC voltage to the batteries • ~325V 10-15A DC output SMPS charger H-bridge pulse-width modulation Plan Start sizing the components (diodes, capacitors, inductors, transformer etc.) Study previous implementation and converter topology Select new PWM implementation (lock switching frequency) Simulation PWM implementation solutions • Single signal PWM IC with logic subsection • • • • Simple design One PWM signal is transformed into gate signals by logic subsection Over 90% efficiency Good document how this is used in practice • 4 signal PWM IC with ZVS • 4 PWM signals with phase shift • Phase shift enables Zero-Voltage-Switching • Reduced switching losses and EMI • Switching frequencies up to 1 MHz are practical