Overcurrent protection and current detection control method and device for power amplification element

An overcurrent protection and component technology, applied in the field of communications, can solve the problems of inability to shut down power amplifier components in time, large delay, etc., to save costs and achieve the effect of overcurrent protection

Active Publication Date: 2015-04-22
SHANGHAI DATANG MOBILE COMM EQUIP +1
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Problems solved by technology

[0006] In summary, in the prior art, there is a large time delay between the output of the sampling control signal and the control to turn off the power amplifier components when the power amplifier components are overcurrent. When the power amplifier components are overcurrent, the power amplifier components cannot be turned off in time.

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  • Overcurrent protection and current detection control method and device for power amplification element
  • Overcurrent protection and current detection control method and device for power amplification element
  • Overcurrent protection and current detection control method and device for power amplification element

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Embodiment Construction

[0050] The specific implementation manners of a power amplifier element overcurrent protection and current detection control method and device provided in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0051] It should be noted that, in the time division multiplexing system, each frame period in the time slot configuration of the power amplifier component contains multiple time slots, and the multiple time slots can be divided into transmission time slots and reception time slots, wherein the transmission time slot It is used to transmit downlink data, and the receiving time slot is used to receive uplink data.

[0052] The operating mode of the processor configuration EPLD mentioned in the embodiment of the present invention and the processor determines whether the EPLD is sampled according to the flag bit used to identify the current value sampling state in the EPLD, all are completed by reading and wr...

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Abstract

The invention discloses an overcurrent protection and current detection control method and device for a power amplification element. The overcurrent protection and current detection control method and device are used for shortening the time delay between the time of outputting a sampling control signal to the time of controlling the power amplification element to be closed when overcurrent occurs to the power amplification element so that the power amplification element can be closed in time when overcurrent occurs to the power amplification element, and the power amplification element is effectively protected. The overcurrent protection method for the power amplification element comprises the steps that an erasable EPLD receives work pattern configuration information sent by a processor; when the EPLD confirms that the EPLD is in a first work pattern according to the work pattern configuration information, the EPLD sends the sampling control signal to a detector to indicate a detector to detect the current value of the power amplification element; after the EPLD receives a detection completion signal sent by the detector, the EPLD reads the current value detected by the detector, compares the current value and a preset threshold value and closes the power amplification element when the current value is larger than the preset threshold value.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an overcurrent protection and current detection control method and device for power amplifier components. Background technique [0002] During the working process of the time division multiplexing (Time Division, TD) system, in order to reduce power consumption, the power amplifier components will be turned off in the receiving time slot, while in the transmitting time slot, the working status of the power amplifier components needs to be monitored. Once the power amplifier components appear In case of overcurrent phenomenon, it is necessary to turn off the power amplifier components in time to ensure that the power amplifier components are not damaged. [0003] At present, the micro control unit (Micro Control Unit, MCU) uses the AMC7812 chip of Texas Instruments (TI) to obtain the current and voltage values ​​on the radio remote unit (Radio Remote Unit, RRU) board. The A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/52
Inventor 毛慧敏陈宇翔杨威李鑫维
Owner SHANGHAI DATANG MOBILE COMM EQUIP
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