Electrical Engineering and Industrical Electronics Bridge Rectifier Lecture
Electrical Engineering and Industrical Electronics Bridge Rectifier Lecture: Wang ruifang Email : rfwang 0404@163. com Office : Yifu Building 107
Review: DC power supply transformer AC power supply v 1 rectifier How to obtain? filter regulator load Rectifier Convert AC into DC vo
The Half-Wave Rectifier Tr a + v – b D io RL v How AC + vo – to obtain the O negative DC voltage? t vo DC O t Positive DC voltage
The Half-Wave Rectifier Tr a + v – b v D io RL + vo – What are the defects for the half-wave rectifier? O t vo O t Negative DC voltage
The Bridge Rectifier 1. Circuit a Tr ~ D 4 D 1 v RL D 3 b D 2 vo Simulation
The Bridge Rectifier 2. Working Principle io a Tr D 1 D 4 ~ v RL D 3 D 2 b During positive half-cycle of v v 3. Waveform vo t vo D 1 D 3 on t
The Bridge Rectifier 2. Working Principle io a Tr D 1 D 4 ~ v RL D 3 D 2 b During negative half-cycle of v v vo 3. Waveform AC t vo DC D 1 D 3 D 2 D 4 D 1 D 3 on on on t
The Bridge Rectifier 4. Calculations of parameters (1) Average voltage (VO) v 3. Waveform t vo (2) Average current (IO) D 1 D 3 D 2 D 4 D 1 D 3 on on on t
The Bridge Rectifier
Discussion 1 a Tr ~ D 4 D 1 v RL D 3 b D 2 vo
Discussion 2 a Tr ~ D 4 D 1 v RL D 3 b How to obtain the negative DC voltage? D 2 vo vo t
Assignments P 387 8. 31 8. 33
Thank you !
- Slides: 13