It's given by the instructor.berkeman said:
Then could you please first explain how the circuit in Figure 3 is an inplementation of the block diagram in Figure 2? What circuit components in Figure 3 are in each block in Figure 2?Fatima Hasan said:
I don't know what is the relation between the two figures. So, I only concentrate on figure(3) to simulate.berkeman said:Then could you please first explain how the circuit in Figure 3 is an inplementation of the block diagram in Figure 2? What circuit components in Figure 3 are in each block in Figure 2?
I think there is no relation between them, because figure(3) is also given in another experiment without figure(2). And the same question is repeated ( simulate figure(3) ).berkeman said:Then could you please first explain how the circuit in Figure 3 is an inplementation of the block diagram in Figure 2? What circuit components in Figure 3 are in each block in Figure 2?
Okay, so let's disregard the thread title (I can fix it up later), and ignore Figure 2. Then tell me what you think the circuit in Figure 3 is doing... What is the LM741 opamp being used as (hint -- it's not being used as an opamp in that circuit). And what is the output of this circuit (hint -- it's not where you are probing...).Fatima Hasan said:
It should amplify the weak signal .berkeman said:
I tried to connect the oscilloscope to the 1k resistor, on the right , but nothing appears.berkeman said:
I connected a sawtooth waveform to pin2 of LM741 .berkeman said:
Please learn to plot multiple waveforms on the same display at the same time, and to plot a length of time that shows multiple cycles of interest in your switching waveform. Thank you.Fatima Hasan said:
I tried to modified the circuit and here's what I got:DaveE said:
No. I don't know what your new circuit is (I suppose the corrected version shown before), and your plots have no information about the waveform. 1V, 100V, 1mV? However, I will say this: it appears that your circuit is making pulses. The circuit you showed before (with some minor corrections) will also make voltage pulses.Fatima Hasan said:
I tried to simulate the circuit again:Fatima Hasan said:
A step-down chopper, also known as a buck converter, is an electronic circuit used to convert a high voltage, low current input to a lower voltage, higher current output. It is commonly used in power supplies to regulate voltage levels.
A step-down chopper works by using a switching element, such as a transistor, to rapidly switch the input voltage on and off. This creates a pulsed voltage output, which is then filtered and smoothed to produce a stable output voltage. The duty cycle of the switching element determines the output voltage level.
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