Well, my assignment title is actually to design a switch mode step down DC-DC converter. My lecturer have given us the block diagram as below and ask us to follow. By the way, can anyone help me analyze it and tell me the function for each part of the block diagram.
(What I'm guessing is that:
Oscillator - convert DC to AC signal
Charge Pump - Step Up voltage
N-Mosfet - switch
filter - ??)
And I have designed the circuit by using Multisim. I have no idea how to simulate oscillator by using multisim, it comes to error even though I have the function-able circuit. Please give some idea and comment.
Oh yea, I have circle out some of the problem in my circuit.
1. Oscillator come out with only 1 output, but connect to the charge pump which require two terminal. Any ideas?
2. Where is the output of MOSFET? Is it only 1 terminal output or 2?
Aha, wait for you guys comments. =)
(What I'm guessing is that:
Oscillator - convert DC to AC signal
Charge Pump - Step Up voltage
N-Mosfet - switch
filter - ??)
And I have designed the circuit by using Multisim. I have no idea how to simulate oscillator by using multisim, it comes to error even though I have the function-able circuit. Please give some idea and comment.
Oh yea, I have circle out some of the problem in my circuit.
1. Oscillator come out with only 1 output, but connect to the charge pump which require two terminal. Any ideas?
2. Where is the output of MOSFET? Is it only 1 terminal output or 2?
Aha, wait for you guys comments. =)
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