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CN-224233691-U - Signal control circuit and electronic equipment

CN224233691UCN 224233691 UCN224233691 UCN 224233691UCN-224233691-U

Abstract

The application discloses a signal control circuit and electronic equipment. The signal control circuit is used for an electronic device with coexisting cellular network functions and wireless communication network functions, and the circuit comprises a notch sub-circuit and a logic control sub-circuit, wherein the logic control sub-circuit is configured to control the on-off of the notch sub-circuit, and the notch sub-circuit is configured to inhibit the interaction between the cellular signals and the wireless communication signals. The signal control circuit in the embodiment of the application can be controlled by the logic control sub-circuit under the condition that the occurrence of the signal interference phenomenon is detected, and can inhibit one of the cellular signal or the wireless communication signal by utilizing the notch effect through the setting of the notch sub-circuit so as to ensure that only one of the cellular signal or the wireless communication signal is normally transmitted and received at the same moment, thereby reducing the mutual interference degree between the cellular signal and the wireless communication signal and protecting the communication performance of electronic equipment.

Inventors

  • PENG LU

Assignees

  • 合肥移瑞通信技术有限公司

Dates

Publication Date
20260512
Application Date
20250509

Claims (10)

  1. 1. A signal control circuit for an electronic device in which a cellular network function and a wireless communication network function coexist, the circuit comprising a notch sub-circuit and a logic control sub-circuit, wherein the logic control sub-circuit is configured to control the on-off of the notch sub-circuit, and the notch sub-circuit is configured to suppress interactions between cellular signals and wireless communication signals.
  2. 2. The circuit of claim 1, wherein the logic control subcircuit comprises a first inductance, a first end of the first inductance being connected to the electronic device through a general purpose input output port; the first inductor is for blocking the cellular signal from the wireless communication signal.
  3. 3. The circuit of claim 2, wherein the logic control subcircuit further comprises a first diode, an anode of the first diode being connected to the second end of the first inductance, a cathode of the first diode being for ground; The first diode is used for controlling the on-off of the notch sub-circuit according to the general input/output signal.
  4. 4. A circuit as claimed in claim 3, wherein a first end of the notch sub-circuit is connected to at least one bus port, the bus port being preset with an equivalent impedance, and a second end of the notch sub-circuit is connected to the anode of the first diode.
  5. 5. The circuit of claim 4, wherein the notch sub-circuit comprises a first capacitor and a second inductor, a first end of the first capacitor being connected to the bus port, a second end of the first capacitor being connected to a first end of the second inductor, a second end of the second inductor being connected to an anode of the first diode.
  6. 6. The circuit of claim 1, wherein the notch sub-circuit comprises a second capacitor and a third inductor, a first end of the third inductor being connected to the logic control sub-circuit, a second end of the third inductor being connected to a first end of the second capacitor, a second end of the second capacitor being for ground.
  7. 7. The circuit of claim 6, wherein the logic control subcircuit comprises a fourth inductance and a second diode, a first end of the fourth inductance being connected to the electronic device through a general purpose input output port, a second end of the fourth inductance being connected to an anode of the second diode, a cathode of the second diode being for ground; the first end of the third inductor is connected with the cathode of the second diode.
  8. 8. The circuit of claim 7, wherein an anode of the second diode is connected to at least one bus port, the bus port is preset with an equivalent impedance, and a third capacitor is further arranged between the bus port and the anode of the second diode; The second diode is used for controlling the on-off of the notch sub-circuit according to the general input/output signal, and the third capacitor is used for blocking the general input/output signal.
  9. 9. The circuit of claim 8, wherein the logic control subcircuit further comprises a fifth inductance, a first end of the fifth inductance being connected to a cathode of the second diode, a second end of the fifth inductance being for ground; the fifth inductor is used for avoiding control failure of on-off of the notch sub-circuit caused by the connection mode of the second diode and the third capacitor.
  10. 10. An electronic device comprising a signal control circuit as claimed in any one of claims 1-9.

Description

Signal control circuit and electronic equipment Technical Field The present application relates to the field of communications technologies, and in particular, to a signal control circuit and an electronic device. Background In the related art, wireless terminal devices such as mobile phones, smart watches, tablet computers and the like which are used daily generally support wireless communication (Wi-Fi) and cellular communication at the same time, and because the frequency ranges of communication signals of the two types of communication in partial frequency bands are close, mutual interference can occur when the communication signals coexist, and further the network communication performance of the device is deteriorated. Disclosure of utility model The application provides a signal control circuit and electronic equipment. The signal control circuit is used for an electronic device with coexisting cellular network functions and wireless communication network functions, and comprises a notch sub-circuit and a logic control sub-circuit, wherein the logic control sub-circuit is configured to control the on-off of the notch sub-circuit, and the notch sub-circuit is configured to inhibit the mutual influence between the cellular signals and the wireless communication signals. In this way, the signal control circuit in the embodiment of the application can be controlled by the logic control sub-circuit under the condition that the occurrence of the signal interference phenomenon is detected, and can inhibit one of the cellular signal or the wireless communication signal by utilizing the notch effect through the setting of the notch sub-circuit so as to ensure that only one of the cellular signal or the wireless communication signal is normally transmitted and received at the same time, thereby reducing the mutual interference degree between the cellular signal and the wireless communication signal and protecting the communication performance of the electronic equipment. In some embodiments, the logic control subcircuit includes a first inductance having a first end connected to the electronic device through a general purpose input output port; the first inductor is for blocking the cellular signal from the wireless communication signal. In some embodiments, the logic control subcircuit further includes a first diode having an anode connected to the second end of the first inductance, a cathode of the first diode being for ground; The first diode is used for controlling the on-off of the notch sub-circuit according to the general input/output signal. In some embodiments, a first end of the notch sub-circuit is connected to at least one bus port, the bus port being preset with an equivalent impedance, and a second end of the notch sub-circuit is connected to an anode of the first diode. In some embodiments, the notch sub-circuit includes a first capacitor and a second inductor, a first end of the first capacitor is connected to the bus port, a second end of the first capacitor is connected to a first end of the second inductor, and a second end of the second inductor is connected to an anode of the first diode. In some embodiments, the notch sub-circuit includes a second capacitor and a third inductor, a first end of the third inductor is connected to the logic control sub-circuit, a second end of the third inductor is connected to a first end of the second capacitor, and a second end of the second capacitor is used for grounding. In some embodiments, the logic control subcircuit includes a fourth inductance and a second diode, a first end of the fourth inductance being connected to the electronic device through a general purpose input output port, a second end of the fourth inductance being connected to an anode of the second diode, a cathode of the second diode being for ground; the first end of the third inductor is connected with the cathode of the second diode. In some embodiments, the anode of the second diode is connected to at least one bus port, the bus port is preset with equivalent impedance, and a third capacitor is further arranged between the bus port and the anode of the second diode; The second diode is used for controlling the on-off of the notch sub-circuit according to the general input/output signal, and the third capacitor is used for blocking the general input/output signal. In some embodiments, the logic control subcircuit further includes a fifth inductance having a first end connected to the cathode of the second diode, the second end of the fifth inductance being for ground; the fifth inductor is used for avoiding control failure of on-off of the notch sub-circuit caused by the connection mode of the second diode and the third capacitor. The electronic device in the embodiment of the application comprises the signal control circuit. Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows and, in part, will be obviou