THE FULL WAVE BRIDGE RECTIFIERTHE FULL WAVE BRIDGE RECTIFIER WITH OPERATIONAL AMPLIFIER WITH OPERATIONAL AMPLIFIER
STUDENT GROUP:
2. LÊ HỒNG NAM
1. NGUYẾN ĐỨC MINH (20081736)
3. TRẦN ANH QUỐC
4.NGUYỄN VIỆT NINH
5. PHẠM VĂN HÙNG
MAIN PARTS:MAIN PARTS:
I. Structure of the circuit.
II. Theory related.
III. Simulation.
I. STRUCTUREI. STRUCTURE
FW Bridge : D1, D2, D3, D4.
Capacitor : C1
Resistor : R1, R2, R3.
Ideal OP Amplifier : U1.
Signal Generation: V1.
I. STRUCTUREI. STRUCTURE
Details about the circuit:
II. THEORY RELATED.II. THEORY RELATED.
Use application of bridge diode and amplifier:
The ripple factor ( r)The OpAmp gain ( K)
RECTIFIER FILTER AMPLIFIERSINUSOILDAL
SIGNAL
III. SIMULATIONIII. SIMULATION
1. Full-wave rectified bridge.
2. RC- Filter circuit.
3. Amplifier circuit.
4. Simulate on Circuit Maker.
5. Check solution.
1. Full-wave rectified bridge.1. Full-wave rectified bridge.
Voltage at point c and e is sinusoildal but out of phase.
c
e
2. RC- Filter circuit.2. RC- Filter circuit.
Voltage at point a : Diagram rippled with the amplitude is Vin- 2Vd.
3. Amplifier circuit.3. Amplifier circuit.
K= 1+R3/R2=4
Non-inverting OP Amp => Uout is positive
4. Simulate on Circuit Maker.4. Simulate on Circuit Maker.
5. 5. Check solution.Check solution.
Value of devices :
R1=R2=R=1k ; R3=3k .
C1=250uF; Vd = 0.7v .
|Vs|= 12v; f=50Hz .
5. 5. Check solution.Check solution.
U in_m = 12- 2 Vb = 12-2.0.7= 10.6
K= 4 so Udc_out = 10.42*4= 41.68 (V)r= 0.1 * 4= 0.4