Symmetric and asymmetric isolation type driving signal transmission circuit
A technology for driving signals and transmitting circuits, applied in the direction of logic circuit connection/interface layout, etc., can solve problems such as low-voltage domain interference and damage to low-voltage domain devices, and achieve the effects of improving robustness, avoiding changes, and reducing the difficulty of circuit design
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[0031] The technical solutions of the present invention will be further described below with reference to the drawings and specific embodiments.
[0032] refer to Figure 1-Figure 7 , a symmetrical and asymmetrical isolated drive signal transmission circuit, comprising: an input line, an isolator, and an output line; the isolator isolates the power supply and ground of the output line from the power supply and ground of the output circuit;
[0033] According to the level of the input signal, the input line generates a symmetrical or asymmetrical modulation signal to the isolation medium after voltage-to-carrier modulation; the output line receives the modulated signal through the isolation medium, and generates it after carrier-to-voltage demodulation output signal.
[0034] In this embodiment, when the modulation signal is a symmetrical carrier signal, the output signal generated after carrier-to-voltage demodulation is high level; when the modulation signal is an asymmetric...
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