Signal transmission circuit and electronic device

A signal transmission circuit, comprising N signal transmission paths;

• each signal transmission path comprising two signal transmission terminals and a path switch connected between the two signal transmission terminals, and N≥1;
• wherein
• the signal transmission circuit further comprises a boost control module and a first feedback module;
• a first terminal of the boost control module is connected to an input voltage, a second terminal of the boost control module is connected to the first feedback module, and a third terminal of the boost control module is directly or indirectly connected to a control terminal of the path switch;
• and the first feedback module is connected to M signal transmission terminals, wherein M≤2N;
• the first feedback module is configured to feed back a voltage to be superimposed to the boost control module, and the voltage to be superimposed is adapted to the maximum voltage among voltages of the M signal transmission terminals;
• the boost control module is configured to boost the input voltage and output a target signal through a third terminal of the boost control module to drive the path switch into a first state by using the target signal when the input voltage is at a high level, wherein a voltage of the target signal is matched to the sum of a boosted voltage of the input voltage and the voltage to be superimposed, and the first state is an on state or an off state;
• wherein the signal transmission circuit further comprises a driver module, the driver module comprises N first drive switches;
• wherein a first terminal of each first drive switch is connected to the third terminal of the boost control module, a second terminal of the each first drive switch is connected to a path switch in a corresponding signal transmission path, and the each first drive switch is kept on and current is matched;
• wherein the control terminal of the path switch is connected with a path capacitor;
• when a first drive switch is turned on, a corresponding path capacitor can be charged by current from the first drive switch.

A signal transmission circuit, comprising N signal transmission paths;

• each signal transmission path comprising two signal transmission terminals and a path switch connected between the two signal transmission terminals, and N≥1;
• wherein
• the signal transmission circuit further comprises a boost control module and a first feedback module;
• a first terminal of the boost control module is connected to an input voltage, a second terminal of the boost control module is connected to the first feedback module, and a third terminal of the boost control module is directly or indirectly connected to a control terminal of the path switch;
• and the first feedback module is connected to M signal transmission terminals, wherein M≤2N;
• the first feedback module is configured to feed back a voltage to be superimposed to the boost control module, and the voltage to be superimposed is adapted to the maximum voltage among voltages of the M signal transmission terminals;
• the boost control module is configured to boost the input voltage and output a target signal through a third terminal of the boost control module to drive the path switch into a first state by using the target signal when the input voltage is at a high level, wherein a voltage of the target signal is matched to the sum of a boosted voltage of the input voltage and the voltage to be superimposed, and the first state is an on state or an off state;
• wherein the signal transmission circuit, further comprises a driver module, the driver module comprises N second drive switches;
• wherein a first terminal of each second drive switch is connected to a control terminal of a path switch in a corresponding signal transmission path, and a second terminal of the each second drive switch is grounded;
• wherein the each second drive switch is configured to turn on when the input voltage is at a low level to drive a path switch in a corresponding signal transmission path into a second state;
• wherein if the first state is an on state, the second state is an off state;
• and
• wherein if the first state is an off state, the second state is an on state.

A signal transmission circuit, comprising N signal transmission paths;

• each signal transmission path comprising two signal transmission terminals and a path switch connected between the two signal transmission terminals, and N≥1;
• wherein
• the signal transmission circuit further comprises a boost control module and a first feedback module;
• a first terminal of the boost control module is connected to an input voltage, a second terminal of the boost control module is connected to the first feedback module, and a third terminal of the boost control module is directly or indirectly connected to a control terminal of the path switch;
• and the first feedback module is connected to M signal transmission terminals, wherein M≤2N;
• the first feedback module is configured to feed back a voltage to be superimposed to the boost control module, and the voltage to be superimposed is adapted to the maximum voltage among voltages of the M signal transmission terminals;
• the boost control module is configured to boost the input voltage and output a target signal through a third terminal of the boost control module to drive the path switch into a first state by using the target signal when the input voltage is at a high level, wherein a voltage of the target signal is matched to the sum of a boosted voltage of the input voltage and the voltage to be superimposed, and the first state is an on state or an off state;
• wherein the maximum voltage is higher than the voltage to be superimposed, and the difference between the maximum voltage and the voltage to be superimposed is a fixed value;
• wherein the signal transmission circuit, further comprises a driver module, the driver module comprises N first drive switches;
• wherein a first terminal of each first drive switch is connected to the third terminal of the boost control module, a second terminal of the each first drive switch is connected to a path switch in a corresponding signal transmission path, and the each first drive switch is kept on and current is matched;
• wherein the control terminal of the path switch is connected with a path capacitor;
• when a first drive switch is turned on, a corresponding path capacitor can be charged by current from the first drive switch.

A signal transmission circuit, comprising N signal transmission paths;

• each signal transmission path comprising two signal transmission terminals and a path switch connected between the two signal transmission terminals, and N≥1;
• wherein
• the signal transmission circuit further comprises a boost control module and a first feedback module;
• a first terminal of the boost control module is connected to an input voltage, a second terminal of the boost control module is connected to the first feedback module, and a third terminal of the boost control module is directly or indirectly connected to a control terminal of the path switch;
• and the first feedback module is connected to M signal transmission terminals, wherein M≤2N;
• the first feedback module is configured to feed back a voltage to be superimposed to the boost control module, and the voltage to be superimposed is adapted to the maximum voltage among voltages of the M signal transmission terminals;
• the boost control module is configured to boost the input voltage and output a target signal through a third terminal of the boost control module to drive the path switch into a first state by using the target signal when the input voltage is at a high level, wherein a voltage of the target signal is matched to the sum of a boosted voltage of the input voltage and the voltage to be superimposed, and the first state is an on state or an off state;
• wherein the maximum voltage is higher than the voltage to be superimposed, and the difference between the maximum voltage and the voltage to be superimposed is a fixed value;
• wherein the signal transmission circuit further comprises a driver module, the driver module comprises N second drive switches;
• Wherein a first terminal of each second drive switch is connected to a control terminal of a path switch in a corresponding signal transmission path, and a second terminal of the each second drive switch is grounded;
• wherein the each second drive switch is configured to turn on when the input voltage is at a low level to drive a path switch in a corresponding signal transmission path into a second state;
• wherein if the first state is an on state, the second state is an off state;
• and
• wherein if the first state is an off state, the second state is an on state.

An electronic device, comprising a signal transmission circuit, wherein the signal transmission circuit comprises N signal transmission paths;

• each signal transmission path comprising two signal transmission terminals and a path switch connected between the two signal transmission terminals, and N≥1;
• wherein the signal transmission circuit further comprises a boost control module and a first feedback module;
• wherein a first terminal of the boost control module is connected to an input voltage, a second terminal of the boost control module is connected to the first feedback module, and a third terminal of the boost control module is directly or indirectly connected to a control terminal of the path switch;
• and the first feedback module is connected to M signal transmission terminals, wherein M≤2N;
• wherein the first feedback module is configured to feed back a voltage to be superimposed to the boost control module, and the voltage to be superimposed is adapted to the maximum voltage among voltages of the M signal transmission terminals;
• wherein the boost control module is configured to boost the input voltage and output a target signal through a third terminal of the boost control module to drive the path switch into a first state by using the target signal when the input voltage is at a high level, wherein a voltage of the target signal is matched to the sum of a boosted voltage of the input voltage and the voltage to be superimposed, and the first state is an on state or an off state;
• wherein the maximum voltage is higher than the voltage to be superimposed, and the difference between the maximum voltage and the voltage to be superimposed is a fixed value;
• wherein the first feedback module comprises M diodes and a feedback capacitor;
• wherein an anode of each diode is connected to a corresponding signal transmission terminal, cathodes of the M diodes are short circuited together and then connected to a first terminal of the feedback capacitor, the first terminal of the feedback capacitor is connected to the second terminal of the boost control module, and a second terminal of the feedback capacitor is grounded.

An electronic device, comprising a signal transmission circuit, wherein the signal transmission circuit comprises N signal transmission paths;

• each signal transmission path comprising two signal transmission terminals and a path switch connected between the two signal transmission terminals, and N≥1;
• wherein the signal transmission circuit further comprises a boost control module and a first feedback module;
• wherein a first terminal of the boost control module is connected to an input voltage, a second terminal of the boost control module is connected to the first feedback module, and a third terminal of the boost control module is directly or indirectly connected to a control terminal of the path switch;
• and the first feedback module is connected to M signal transmission terminals, wherein M≤2N;
• wherein the first feedback module is configured to feed back a voltage to be superimposed to the boost control module, and the voltage to be superimposed is adapted to the maximum voltage among voltages of the M signal transmission terminals;
• wherein the boost control module is configured to boost the input voltage and output a target signal through a third terminal of the boost control module to drive the path switch into a first state by using the target signal when the input voltage is at a high level, wherein a voltage of the target signal is matched to the sum of a boosted voltage of the input voltage and the voltage to be superimposed, and the first state is an on state or an off state;
• wherein the electronic device further comprises a driver module, the driver module comprises N first drive switches;
• wherein a first terminal of each first drive switch is connected to the third terminal of the boost control module, a second terminal of the each first drive switch is connected to a path switch in a corresponding signal transmission path, and the each first drive switch is kept on and current is matched;
• wherein the control terminal of the path switch is connected with a path capacitor;
• when a first drive switch is turned on, a corresponding path capacitor can be charged by current from the first drive switch.

An electronic device, comprising a signal transmission circuit, wherein the signal transmission circuit comprises N signal transmission paths;

• each signal transmission path comprising two signal transmission terminals and a path switch connected between the two signal transmission terminals, and N≥1;
• wherein the signal transmission circuit further comprises a boost control module and a first feedback module;
• wherein a first terminal of the boost control module is connected to an input voltage, a second terminal of the boost control module is connected to the first feedback module, and a third terminal of the boost control module is directly or indirectly connected to a control terminal of the path switch;
• and the first feedback module is connected to M signal transmission terminals, wherein M≤2N;
• wherein the first feedback module is configured to feed back a voltage to be superimposed to the boost control module, and the voltage to be superimposed is adapted to the maximum voltage among voltages of the M signal transmission terminals;
• wherein the boost control module is configured to boost the input voltage and output a target signal through a third terminal of the boost control module to drive the path switch into a first state by using the target signal when the input voltage is at a high level, wherein a voltage of the target signal is matched to the sum of a boosted voltage of the input voltage and the voltage to be superimposed, and the first state is an on state or an off state;
• wherein the electronic device further comprises a driver module, the driver module comprises N second drive switches;
• wherein a first terminal of each second drive switch is connected to a control terminal of a path switch in a corresponding signal transmission path, and a second terminal of the each second drive switch is grounded;
• wherein the each second drive switch is configured to turn on when the input voltage is at a low level to drive a path switch in a corresponding signal transmission path into a second state;
• wherein if the first state is an on state, the second state is an off state;
• and
• wherein if the first state is an off state, the second state is an on state.