Small current double monitoring circuit for amplifying power sub-assemblies, amplifying power sub-assembly
A monitoring circuit and amplifying circuit technology, which is applied to measuring devices, measuring current/voltage, measuring electrical variables, etc., can solve the problems of large dynamic range of four-channel received signals, failure to use power monitoring circuit for fault monitoring, and low signal power.
Active Publication Date: 2021-09-10
BEIJING INST OF RADIO MEASUREMENT
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Problems solved by technology
Due to the large dynamic range and low signal power of the four-way receiving signals sent by the antenna, it is impossible to use the conventional power monitoring circuit to realize the fault monitoring of the components, and the components require the function of fault monitoring, so it is necessary to provide a small current The dual monitoring circuit can perform dual monitoring of undercurrent and overcurrent on the small current of the amplifying power subassembly, or provide an amplifying power subassembly with a small current dual monitoring circuit to monitor component failures
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[0032] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
[0033] Such as figure 1 As shown, in one embodiment of the present invention, a small current dual monitoring circuit for amplifying power sub-assemblies is disclosed. The small current dual monitoring circuit includes: a current detection amplifier circuit 1001 and a voltage monitoring circuit 1003 . The current detection amplifier circuit 1001 is used to detect the current signal of the power input amplifier subassembly and amplifies the current signal to output to the voltage monitoring circuit; the voltage monitoring c...
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The invention discloses a small current double monitoring circuit for amplifying power sub-assemblies, which is characterized in that the small current double monitoring circuit comprises: a current detection amplifying circuit for detecting the current signal of the power input into the amplifying power sub-assembly and The current signal is amplified and output to the voltage monitoring circuit; the voltage monitoring circuit is used to convert the amplified current signal into a voltage signal, and divide the voltage signal for processing, so as to realize the amplification power division Dual monitoring of under-current and over-current of small current of components and output monitoring voltage.
Description
technical field [0001] The invention relates to circuit monitoring, in particular to a small current double monitoring circuit and an amplifying power subassembly for amplifying power sub-assemblies. Background technique [0002] The function of the amplification power sub-assembly is to amplify the four-way receiving signals fed by the antenna to meet the requirements of the post-stage components. Due to the large dynamic range and low signal power of the four-way receiving signals sent by the antenna, it is impossible to use the conventional power monitoring circuit to realize the fault monitoring of the components, and the components require the function of fault monitoring, so it is necessary to provide a small current The dual monitoring circuit can perform dual monitoring of undercurrent and overcurrent on the small current of the amplifying power subassembly, or provide an amplifying power subassembly with a small current dual monitoring circuit to realize component f...
Claims
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IPC IPC(8): G01R19/165
CPCG01R19/16533
Inventor 江姗姗孙永敏崔彦东安理
Owner BEIJING INST OF RADIO MEASUREMENT