What is the name of this circuit?

Aguilera

What is the name of this circuit? [Copy link]

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What is the name of the dual-tube self-excited power drive circuit shown in the figure below?

maychang

[Help me find out what this circuit is called]

Royer oscillator, Royer oscillator, magnetically coupled multivibrator.

maychang

[Help me find out what this circuit is called]

Refer to this post.

What is this DC to AC circuit called a power supply circuit?

maychang

However, the circuit in the upper left corner is not complete, and it is not marked where the left side of R7 leads to. The purpose of these two tubes seems to be current limiting protection.

Aguilera

maychang posted on 2022-12-14 17:19 [Please help me find out what this circuit is called] Royer oscillator, Royer oscillator, magnetically coupled multivibrator.

These three oscillator circuits are not the same

maychang

Aguilera posted on 2022-12-15 10:36 These three oscillator circuits are not the same

[These three oscillator circuits are not the same]

Same circuit, just a different name.

Royer is a person's name, which is translated into "罗耶" or "罗耶尔" in Chinese. Of course, the translations are different, but they are actually the same person.

As for the "magnetically coupled multivibrator", it is explained from the functional point of view. Just like the Buck circuit, it can also be called a step-down switching circuit or a chopper circuit.

maychang

Aguilera posted on 2022-12-15 10:36 These three oscillator circuits are not the same

[These three oscillator circuits are not the same]

Of course, as mentioned in the third post, due to the presence of capacitor C6 in the circuit of the first post, the output is no longer a rectangular wave, but a sinusoidal one.

Aguilera

maychang posted on 2022-12-15 10:59 [These three oscillator circuits are not the same] Of course, as quoted in the third post, due to the presence of capacitor C6 in the first post circuit, the output is no longer a rectangle...

Thank you teacher for your answer

Gen_X

Functionally speaking, this can be called a "synchronous modulation" power supply, that is, in addition to the isolated power supply function, the circuit can be modulated in the power supply to generate communication functions. For example, the S bus used by SOLARTRON is such a power supply + communication.

Aguilera

Gen_X posted on 2022-12-17 16:43 Functionally speaking, this can be called a "synchronous modulation" power supply, that is, in addition to the isolated power supply function, the circuit can also be modulated in the power supply, ...

Okay, I think I understand better.

Thanks