Signal receiver and signal transmitting and receiving device
A technology of signal receiver and signal input terminal, which is applied in the direction of transmission line coupling device, logic circuit connection/interface layout, logic circuit coupling/interface using field effect transistors, etc., which can solve problems such as power consumption and circuit component damage, and prevent The effect of leakage current
Pending Publication Date: 2022-05-27
ALI CORP
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Problems solved by technology
It is worth noting that this phenomenon of leakage current will cause unnecessary power consumption, and may also cause damage to circuit components in electronic devices
Method used
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[0029] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and descriptions to refer to the same or like parts.
[0030] Please refer to figure 1 , figure 1 A schematic diagram showing a signal receiver according to an embodiment of the present invention. The signal receiver 100 includes a terminal switch pair 110 , a resistor R1 , a resistor R2 and a pull-down circuit 120 . The terminal switch pair 110 is coupled to the operating power supply VDD, and the terminal switch pair has a common control terminal (the terminal providing the first control voltage VA). The resistor R1 is coupled between the first signal input terminal IN1 and the common control terminal. The resistor R2 is coupled between the second signal input terminal IN2 and the common control terminal. The pull-down circuit 120 is couple...
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The invention provides a signal receiver capable of preventing leakage current and a signal transmitting and receiving device. The signal receiver comprises a terminal switch pair, a first resistor, a second resistor and a pull-down circuit. The terminal switch pair receives an operation power supply. The pair of terminal switches has a common control terminal. The first resistor is coupled between the first signal input end and the common control end. The second resistor is coupled between the second signal input end and the common control end. The pull-down circuit is coupled between the common control terminal and a reference voltage terminal. The pull-down circuit determines whether to pull down the first control voltage on the common control terminal to the reference voltage according to the enabling state or the power-off state of the signal receiver.
Description
technical field [0001] The invention relates to a signal receiver, and in particular to a signal receiver and a signal transceiving device, which can prevent unnecessary leakage current. Background technique [0002] In the common knowledge, in the signal generating device, when the power of the signal receiver is turned off and does not perform any action, while the signal transmitter is still in the working state, there may be undesirable The conduction path causes leakage current to occur. It should be noted that this phenomenon of leakage current will cause unnecessary power consumption, and may also cause damage to circuit components in the electronic device. Contents of the invention [0003] The invention is aimed at a signal receiver and a signal transceiver, which can prevent unnecessary leakage current. [0004] According to an embodiment of the present invention, the signal receiver includes a pair of termination switches, a first resistor, a second resistor, ...
Claims
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IPC IPC(8): H03K17/687H03K19/20H03K19/00H03K19/003H03K17/56
CPCH03K17/687H03K19/20H03K19/0008H03K19/0013H03K19/003H03K19/00315H03K17/56H04B1/16H03K19/0185H04B1/40H04L25/028H04L25/0292
Inventor 徐禛李明达
Owner ALI CORP