Communication base station controller capable of achieving short-circuit protection
A communication base station and short-circuit protection technology, which is applied to emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, circuit devices, etc., can solve the problems of communication base station paralysis, user inconvenience, etc. Low cost, low cost, and simple circuit structure
Inactive Publication Date: 2014-09-17
SICHUAN UCS COMM TECH
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Problems solved by technology
The communication base station controller needs power supply. When the power supply fails, the communication base station controller and even the entire communication base station will be paralyzed, which will bring inconvenience to users.
Method used
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[0016] Such as figure 1 The short-circuit-protectable communication base station controller includes a power port and an internal circuit, and a short-circuit protection circuit is connected between the power port and the internal circuit. The short-circuit protection circuit includes a triode T1, and the triode The collector of T1 is connected to the power supply port and the cathode of the diode D1 at the same time, the emitter of the triode T1 is connected to the collector of the triode T2 and the anode of the diode D2 at the same time, and the bases of the triode T1 and the triode T2 are connected at the same time Connected to the output terminal of the comparator, the emitter of the triode T2 is connected to the power supply, the cathode of the diode D2 is connected to the inverting input terminal of the comparator, and the anode of the diode D1 is connected to the comparator On the noninverting input terminal of the comparator, the output terminal of the comparator is co...
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The invention discloses a communication base station controller capable of achieving short-circuit protection. A short-circuit protection circuit is connected between a power port and an internal circuit. The short-circuit protection circuit comprises an audion T1. The collector electrode of the audion T1 is connected with the power port and the cathode of a diode D1 at the same time, the emitting electrode of the audion T1 is connected with the collector electrode of an audion T2 and the anode of a diode D2 at the same time, and the base electrode of the audion T1 and the base electrode of the audion T2 are connected with the output end of a comparator at the same time. The emitting electrode of the audion T2 is connected to a power source, the cathode of the diode D2 is connected to the reverse input end of the comparator, and the anode of the diode D1 is connected to the non-inverting input end of the comparator. The output end of the comparator is connected to the source electrode of a field-effect transistor, the non-inverting input end of the comparator is connected with a pull-up resistor R1, and the output end of the comparator is connected with a pull-up resistor R2. The communication base station controller capable of achieving short-circuit protection has the advantages that the circuit structure is simple and the short-circuit protection function can be achieved.
Description
technical field [0001] The invention relates to a communication base station controller, in particular to a communication base station controller capable of short-circuit protection. Background technique [0002] In the context of the rapid development of communication technology, the number of users of the global mobile communication network is increasing rapidly. At the same time, with the increase of the number of mobile communication users, the number of mobile communication base station controllers also increases. The communication base station controller is an important equipment of the communication base station, and safety is a very important evaluation index. The communication base station controller needs to be powered by power supply. When there is a problem with the power supply, the communication base station controller and even the entire communication base station will be paralyzed, which will bring inconvenience to users. Contents of the invention [0003]...
Claims
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IPC IPC(8): H02H9/02
Inventor 王学宗
Owner SICHUAN UCS COMM TECH