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Draw the circuit of: a.A full-wave rectifier with diode bridge and capacitive fi...
425234

425234

Draw the circuit of: a.A full-wave rectifier with diode bridge and capacitive filter. b.A differential amplifier with djt transistors and current source.
2y
425234

425234

@copilot Draw the circuit of: a.A full-wave rectifier with diode bridge and capacitive filter. b.A differential amplifier with djt transistors and current source.
2y

copilot

Sure, I can guide you through designing these circuits in Flux.
a. Full-wave rectifier with diode bridge and capacitive filter
  1. First, you need four diodes. You could start with 1N4007 diodes, which are general purpose diodes. Place them in a square shape, such that the cathode of one diode connects to the anode of the next one around the square. This forms the bridge configuration.
  2. Next, to get the AC input into the rectifier, connect an AC source(frequency =50Hz, amplitude =10V- this is a typical mains supply in many regions but adjust based on your requirements) to one pair of diagonally opposite points on the diode bridge. AC Source can have designator as V1.
  3. Indicator that you might be interested in the Load resistance which will determine the current in the circuit, if not provided let's assume it to be 1k ohm. Connect the Load resistance (R1) across the other pair of diagonally opposite points.
  4. Finally, for the capacitive filter, you need a capacitor (C1). Connect this in parallel with R1. 470uF can be typical value for capacitor , but it will depend on the ripple you can tolerate and load current.
b. Differential Amplifier with BJT transistors and current source
  1. Begin with two NPN transistors (Q1 and Q2), say 2N3904s, with the collectors connected to each other, and the bases connected to each other. These act as the inputs.
  2. The current source can be simulated using a resistor (R1) connected in series with a DC voltage source (V1(5V)). Connect the junction of resistor and voltage source to the common emitters of the transistors which will bias them.
  3. Further, we connect the collector of Q1 and Q2 with Resistors (R2 and R3 ) respectively. Other terminal of resistors are connected to VCC (+10V).
  4. The Output will be taken differentially across collectors of Q1 and Q2.
  5. You can also add capacitors (C1 and C2) at the input to the bases of the transistors to decouple the input signal. The value can be assumed as 1uF, but remember for AC coupling caps, the cap needs to present a reactance less than 1/10 of the input resistance at the lowest frequency of operation.
Ensure that all the components are connected correctly and the circuit is grounded as necessary. Once complete, don't forget to simulate the circuits to verify they function as expected.
2y
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