How to assemble a circuit diagram having a structural one?

Question

Electronics

Maybe there will be some advice on how to draw up a diagram, I look and my head is smoking, for the first time I do this and it’s really tight. I came to the conclusion that to a greater extent the device consists of digital electronics. Can you suggest what could be in this scheme. I'm thinking that some kind of transistor can be used as an UMS, but there must be something in front of it. MUU - here it is possible a decoder, a bus, and something else in the aggregate. A Thyristor or Triac may be suitable as a power control unit.
The scheme, as for me, is very complex and voluminous. A couple of LEDs, segment indicators for outputting frequency, power. Perhaps also a zener diode, an operational amplifier.
Where I took the structural diagram is attached below.
www.mtjournal.ru/upload/iblock/87c/87caf9ada3bdb3b...

USG - controlled master generator; UMS - power amplifier with a matching device; MUU - microprocessor control device; UVO - device for input and display of modes; BKA - acoustic contact control unit; KLG - combined treatment head; KUS - unit for monitoring the parameters of ultrasonic radiation; URM - power control unit; UIT - controlled current source; KMT - current switch; UKT - output current control unit; ELD - electrode.

Answer 1

Nodes are displayed on the block diagram. You painted them yourself.
A node is a kind of self-sufficient part of the circuit, which, as a rule, has an input and an output.
For example, do you have a node called "controlled current source", what should you know about it?
Offhand, you should know its input and output parameters. The input will be: signal type - analog or digital, if analog, then what is it - current or voltage and what range; if digital, then bit depth, logical levels, transmission frequency. The output will be: the range of currents given to the load, the mode of operation - constant / variable (pulse), grounded or ungrounded load. Based on this, you choose which scheme suits you best. For example, a circuit can be made both on several transistors, and on an op-amp or a linear stabilizer.
And this is how you go through all the nodes. Some may consist of a single component/chip, some may be very complex.
And it is also important to take into account the error (but for the courseworker, I think - do not care).

Answer 2

According to the structural scheme - to develop a principle. Then - collect.
And so - this question probably violates some clause of the QNA Charter. Because confusingly similar to "do it for me." Rarrabotku medical device in one question QNA - do not fit in any way.