Week 4 Session 5
Power Converters
Power electronics is nothing but the branch of electronics used for electric power conversion and control of electric power
Power electronics is the heart of electric power conversion ,where electronics transform voltage & Currents from one level and shape to another
power converters in electric vehicles are 3 types they are namely
- DC_AC Converters
- AC_DC Converters
- DC_DC Converters
DC_AC Converters
- It converts the DC input Voltage to the AC Output Voltage
- DC_AC converters is also known as Inverters
- Inverters can control both magnitude and frequency of output AC Voltage
- Widely Used in Control of AC Motors
- The Output AC voltage is single phase,3phase
AC_DC Converters
- AC _DC Converters is also known as Rectifiers
- Rectifiers Converts the AC input Voltage to DC output voltage
- Widely Seen in battery Charging
- Rectifiers with powerfactor Corrections are popular in industries
DC_DC Converters
- Converts an unregulated DC input voltage to a regulated DC output Voltage
- DC_DC converters is also known as Choppers
- choppers are non isolated converters they are buck converter,boost converter,buck boost converter
- Isolated converters are fly bridge ,Forward,half bridge,full bridge
- Resonant converters are different family of DC_DC converters used for high power applications
DC_DC Converter For Horn
As previously stated, the horn is normally powered by a DC power supply with a voltage of less than 10V. A DC-DC converter can be used to convert the vehicle's battery's high-voltage DC supply (usually 200-400V) to the lower voltage required by the horn.
Applications of Power electronics in daily base
- Light Dimmer
- Phone Charger(AC to DC)
- laptop charger(DC to DC)
- Locomotives
- Home inverter(DC_AC)
- UPS(DC_AC)
Applications of DC_DC Converters in EV
- Car Air Conditioning System
- Music System
- Head Light
- Dimmer