CN207601571U - A kind of control circuit for rf power measurement - Google Patents
A kind of control circuit for rf power measurement Download PDFInfo
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- CN207601571U CN207601571U CN201721705655.4U CN201721705655U CN207601571U CN 207601571 U CN207601571 U CN 207601571U CN 201721705655 U CN201721705655 U CN 201721705655U CN 207601571 U CN207601571 U CN 207601571U
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- chip
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- microprocessor
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Abstract
The utility model discloses a kind of control circuit for rf power measurement, including microprocessor, storage chip, the first extended chip, the second extended chip, usb circuit, SPI interface circuitry and power-switching circuit；Wherein, microprocessor is connect respectively with storage chip, the first extended chip, the second extended chip, usb circuit, SPI interface circuitry and power-switching circuit, and, microprocessor obtains calibration data by storage chip, it is connect by the first extended chip with display module, is connect by the second extended chip with keyboard input module, pass through usb circuit and external device communication, it is connect by SPI interface circuitry with RF signal collection circuit, electric energy is obtained by power-switching circuit.Therefore, when the control circuit of the utility model is applied in rf power measurement instrument, portability can be promoted, and more perfect function can be provided.
Description
Technical field
The utility model is related to electronic circuit technology field, more particularly to a kind of control electricity for rf power measurement
Road.
Background technology
At present, radio-frequency technique has been widely used in the fields such as electronic countermeasure, electronic communication and aerospace, and existing
Rf power measurement instrument it is complicated, volume is big, inconvenient to carry, and some portable rf power measurement instruments
Due to volumetric constraint, function is incomplete.Therefore, it is necessary to be optimized to rf power measurement apparatus structure, that is, promoted portable
Property, and more perfect function is provided.
Utility model content
The purpose of the utility model is to overcome the above-mentioned deficiencies in the presence of the prior art, provide a kind of for radio frequency work(
The control circuit that rate measures promotes portability, and provides more perfect function.
In order to realize above-mentioned purpose of utility model, the utility model provides following technical scheme：
A kind of control circuit for rf power measurement, including microprocessor, storage chip, the first extended chip,
Second extended chip, usb circuit, SPI interface circuitry and power-switching circuit；Wherein, the microprocessor respectively with institute
State storage chip, first extended chip, second extended chip, the usb circuit, the SPI interface circuitry
It is connected with the power-switching circuit, also, the microprocessor obtains calibration data by the storage chip, by described
First extended chip is connect with display module, is connect by second extended chip with the keyboard input module, is passed through institute
Usb circuit and external device communication are stated, is connect by the SPI interface circuitry with RF signal collection circuit, passes through institute
It states power-switching circuit and obtains electric energy.
According to a kind of specific embodiment, the utility model is used in the control circuit of rf power measurement, described micro-
Processor is powered by the usb circuit, and is equipped with and is protected between the microprocessor and the usb circuit
Chip is protected, for being powered off immediately when overvoltage or short circuit occurs.
According to a kind of specific embodiment, the utility model is used in the control circuit of rf power measurement, the electricity
Power-switching circuit includes switching mode DC-DC conversion chips and buck DC-DC conversion chip.
According to a kind of specific embodiment, the utility model is used in the control circuit of rf power measurement, described micro-
Processor is main control chip ST32F106, and first extended chip and second extended chip are transformation from serial to parallel core
Piece.
Compared with prior art, the beneficial effects of the utility model：
The utility model includes microprocessor, storage chip, the first extension core for the control circuit of rf power measurement
Piece, the second extended chip, usb circuit, SPI interface circuitry and power-switching circuit；Wherein, microprocessor respectively with storage
Chip, the first extended chip, the second extended chip, usb circuit, SPI interface circuitry are connected with power-switching circuit, and
And microprocessor obtains calibration data by storage chip, is connect by the first extended chip with display module, expands by second
Exhibition chip is connect with keyboard input module, by usb circuit and external device communication, passes through SPI interface circuitry and radio frequency
Signal acquisition circuit connects, and electric energy is obtained by power-switching circuit.Therefore, the control circuit of the utility model is applied in radio frequency
When in level instrumentation, portability can be promoted, and more perfect function can be provided.
Description of the drawings：
Fig. 1 is the structure diagram of the utility model control circuit.
Specific embodiment
The utility model is described in further detail with reference to test example and specific embodiment.It but should not be by this
The range for being interpreted as the above-mentioned theme of the utility model is only limitted to following embodiment, all to be realized based on the utility model content
Technology belongs to the scope of the utility model.
With reference to the structure diagram of the utility model control circuit shown in FIG. 1；Wherein, the utility model is used for radio frequency work(
Rate measure control circuit include microprocessor, storage chip, the first extended chip, the second extended chip, usb circuit,
SPI interface circuitry and power-switching circuit；Wherein, the microprocessor extends core with the storage chip, described first respectively
Piece, second extended chip, the usb circuit, the SPI interface circuitry are connected with the power-switching circuit, and
And the microprocessor obtains calibration data by the storage chip, is connected by first extended chip and display module
It connects, is connect by second extended chip with the keyboard input module, led to by the usb circuit with external equipment
Letter, is connect by the SPI interface circuitry with RF signal collection circuit, and electric energy is obtained by the power-switching circuit.
Specifically, the utility model is in the control circuit of rf power measurement, the microprocessor to be also by described
Usb circuit is powered, and between the microprocessor and the usb circuit be equipped with protection chip, for
Occur to power off immediately when overvoltage or short circuit.
Specifically, the utility model is in the control circuit of rf power measurement, the power-switching circuit to include opening
Pass type DC-DC conversion chips and buck DC-DC conversion chip.The microprocessor is main control chip ST32F106, described the
One extended chip and second extended chip are transformation from serial to parallel chip 74VHC595.When implementing, pass through J-Link V8
Emulator will be in project file programming to microprocessor.
Claims (4)
1. a kind of control circuit for rf power measurement, which is characterized in that expand including microprocessor, storage chip, first
Open up chip, the second extended chip, usb circuit, SPI interface circuitry and power-switching circuit；Wherein, the microprocessor point
It is not connect with the storage chip, first extended chip, second extended chip, the usb circuit, the SPI
Mouth circuit is connected with the power-switching circuit, also, the microprocessor obtains calibration data by the storage chip, is led to
It crosses first extended chip to connect with display module, is connect, passed through with keyboard input module by second extended chip
The usb circuit and external device communication are connect with RF signal collection circuit by the SPI interface circuitry, passed through
The power-switching circuit obtains electric energy.
2. it to be used for the control circuit of rf power measurement as described in claim 1, which is characterized in that the microprocessor passes through
The usb circuit is powered, and protection chip is equipped between the microprocessor and the usb circuit, is used
It is powered off immediately when overvoltage or short circuit is occurring.
3. it to be used for the control circuit of rf power measurement as described in claim 1, which is characterized in that the power-switching circuit
Including switching mode DC-DC conversion chips and buck DC-DC conversion chip.
4. it to be used for the control circuit of rf power measurement as claimed in claim 2 or claim 3, which is characterized in that the microprocessor
For main control chip ST32F106, first extended chip and second extended chip are transformation from serial to parallel chip
74VHC595。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705655.4U CN207601571U (en) | 2017-12-08 | 2017-12-08 | A kind of control circuit for rf power measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705655.4U CN207601571U (en) | 2017-12-08 | 2017-12-08 | A kind of control circuit for rf power measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207601571U true CN207601571U (en) | 2018-07-10 |
Family
ID=62764590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721705655.4U Active CN207601571U (en) | 2017-12-08 | 2017-12-08 | A kind of control circuit for rf power measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207601571U (en) |
-
2017
- 2017-12-08 CN CN201721705655.4U patent/CN207601571U/en active Active
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