CN213903643U - Signal output control device - Google Patents
Signal output control device Download PDFInfo
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- CN213903643U CN213903643U CN202023258821.5U CN202023258821U CN213903643U CN 213903643 U CN213903643 U CN 213903643U CN 202023258821 U CN202023258821 U CN 202023258821U CN 213903643 U CN213903643 U CN 213903643U
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Abstract
The utility model relates to a signal output controlling means technical field discloses a signal output controlling means, produce the circuit including sine wave, sine wave production circuit, amplitude regulating circuit, operational amplification circuit, frequency detection circuit and MCU, accessible effective voltage detection circuit detects when in-service use the utility model discloses whether the voltage amplitude value of the sinusoidal wave of output satisfies the requirement, detects through frequency detection circuit the utility model discloses whether the frequency of the sinusoidal wave of output satisfies the requirement, if appear unusually can adjust through amplitude regulating circuit the utility model discloses the sinusoidal wave amplitude of output, can adjust through frequency regulating circuit the utility model discloses the frequency of the sinusoidal wave of fast play, and then ensure to adopt the utility model discloses when testing electronic product, electronic product tests in qualified test environment all the time.
Description
Technical Field
The utility model relates to a signal output controlling means technical field, concretely relates to signal output controlling means.
Background
In the testing process of electronic products, various signal output control devices are often required to input electric signals with different frequencies, different amplitudes or different widths to the electronic products to detect whether the electronic products can normally work in the current testing environment, for example, when an interrupt interface of a single chip microcomputer is tested, a high-frequency signal needs to be input to the interrupt interface to detect whether the single chip microcomputer can normally recognize interrupt, or when an IO port of the PLC is tested, when the IO port of the PLC needs to be tested and the ambient voltage reaches 3000V or 4000V, the PLC can normally recognize the input high-low level signal, so that the testing of the electronic products is very important for whether the electronic products can be normally used in the future.
However, the conventional signal output control device lacks a detection device for a generated signal during actual use, and cannot find the deviation between the frequency or amplitude of the signal actually output by the signal output control device and the frequency or amplitude of a required standard test signal in time, so that an electronic product is not tested in a standard test environment, and the stability of the electronic product during use is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the deficiency of the background art, the utility model provides a signal output controlling means, the technical problem that solve is that current signal output controlling means can not adjust when the signal of output and the standard signal of settlement appear the deviation, can make the electronic product not test in standard test environment.
For solving the technical problem, the utility model provides a following technical scheme: a signal output control device comprises
A sine wave generating circuit for generating a first sine wave;
the frequency adjusting circuit is used for inputting a frequency adjusting signal to the frequency adjusting signal input end of the sine wave generating circuit, and the sine wave generating circuit adjusts the frequency of the generated first sine wave according to the input frequency adjusting signal;
the amplitude adjusting circuit is used for adjusting the amplitude of the first sine wave and outputting a second sine wave;
an operational amplifier circuit for amplifying the second sine wave and outputting a third sine wave;
the effective voltage detection circuit is used for detecting the amplitude of the second sine wave and outputting a first detection signal;
the frequency detection circuit is used for detecting the frequency of the third sine wave and outputting a second detection signal;
and the MCU is used for receiving the first detection signal and the second detection signal, inputting an amplitude adjusting command to the amplitude adjusting circuit according to the first detection signal and inputting a frequency adjusting command to the frequency adjusting circuit according to the second detection signal.
As a further technical scheme, the second sine wave passes through a voltage follower and then is input to an effective voltage detection circuit.
As a further technical scheme, the utility model discloses still include reference voltage calibration circuit, reference voltage calibration circuit is used for detecting the voltage difference between measuring ground and the power ground to input the third detected signal to MCU.
As a further technical scheme, the sine wave generating circuit comprises a function signal generating chip with the model of ICL 8038.
As a further technical solution, the frequency adjustment circuit includes a control chip with a model number X9110TV141, and a pin No. 11 of the control chip inputs a frequency adjustment signal to the frequency adjustment signal input end through the second operational amplifier circuit.
As a further technical solution, the amplitude adjusting circuit includes two control chips with a model number X9110TV141, a first sine wave is input to a pin No. 12 of a first control chip, a signal a is input to a pin No. 12 of a second control chip through a second voltage follower from a pin No. 11 of the first control chip, and a second sine wave is output from a pin No. 11 of the second control chip.
As a further technical scheme, the model of the MCU is STM320F 2812.
Compared with the prior art, the utility model beneficial effect who has is: accessible effective voltage detection circuit detects when in-service use the utility model discloses whether the sinusoidal wave's of output voltage amplitude value satisfies the requirement, detects through frequency detection circuit the utility model discloses whether the frequency of the sinusoidal wave of output satisfies the requirement, if appear unusually can adjust through amplitude regulating circuit the utility model discloses the sinusoidal wave amplitude of output, can adjust through frequency regulating circuit the utility model discloses the frequency of the sinusoidal wave that the type is fast out, and then ensure to adopt the utility model discloses when testing electronic product, electronic product tests in qualified test environment all the time.
Drawings
The utility model discloses there is following figure:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a circuit diagram of a sine wave generating circuit according to the present invention'
Fig. 3 is a circuit diagram of the frequency adjustment circuit of the present invention;
fig. 4 is a circuit diagram of the amplitude adjusting circuit of the present invention;
fig. 5 is a circuit diagram of the effective voltage detection circuit and the voltage follower of the present invention;
fig. 6 is a circuit diagram of the frequency detection circuit of the present invention;
fig. 7 is a circuit diagram of the reference voltage calibration circuit of the present invention;
fig. 8 is an operational amplifier circuit diagram according to the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 to 8, a signal output control device includes a sine wave generation circuit, an amplitude adjustment circuit, an operational amplification circuit, a frequency detection circuit, and an MCU.
The sine wave generating circuit is used for generating a first sine wave; the frequency adjusting circuit is used for inputting a frequency adjusting signal to the frequency adjusting signal input end of the sine wave generating circuit, and the sine wave generating circuit adjusts the frequency of the generated first sine wave according to the input frequency adjusting signal; the amplitude adjusting circuit is used for adjusting the amplitude of the first sine wave and outputting a second sine wave; the operational amplification circuit amplifies the second sine wave and outputs a third sine wave; the effective voltage detection circuit is used for detecting the amplitude of the second sine wave and outputting a first detection signal; the frequency detection circuit is used for detecting the frequency of the third sine wave and outputting a second detection signal; and the MCU is used for receiving the first detection signal and the second detection signal, inputting an amplitude adjusting command to the amplitude adjusting circuit according to the first detection signal and inputting a frequency adjusting command to the frequency adjusting circuit according to the second detection signal.
Referring to fig. 5, in the present embodiment, the second sine wave is input to the effective voltage detection circuit through the voltage follower N19B, and the DAC5 terminal of the effective voltage detection circuit inputs the first detection signal to the analog signal input terminal of the MCU.
Referring to fig. 7, in this embodiment, in order to avoid the influence of the voltage deviation between the measurement ground and the power ground on the effective amplitude of the third sine wave, the present invention further includes a reference voltage calibration circuit, the reference voltage calibration circuit is used to detect the voltage difference between the measurement ground and the power ground, and input the third detection signal to the MCU, the TG1 terminal and the TG2 terminal are respectively connected to the measurement ground and the power ground, and the + VIN1 and-VIN 1 input the third detection signal to the analog signal input terminal of the MCU. For specific use, it can be referred to that, assuming that the voltage deviation between the measurement ground and the power ground is U1 when the reference voltage calibration circuit inputs the MCU with the effective voltage of the second sine wave (assumed as U2), the MCU compares the amplitude of the standard effective voltage set after subtracting U1 from U2.
Referring to fig. 1, in the present embodiment, the sine wave generation circuit includes a function signal generation chip with an ICL8038, and a resistor RP1 is used to adjust the duty cycle of the first sine wave output by the sine wave generation circuit, and the waveform of the output signal of the function signal generation chip can be made to be a sine wave by adjusting resistors RP2 and RP 3.
Referring to fig. 3, in the present embodiment, the frequency adjustment circuit includes a control chip of type X9110TV141, pin No. 11 of the control chip inputs a frequency adjustment signal to the frequency adjustment signal input terminal through a second operational amplifier circuit, and the second operational amplifier circuit adopts an operational amplifier N60A of type OP 200.
Referring to fig. 4, in the present embodiment, the amplitude adjusting circuit includes two control chips of type X9110TV141, a first sine wave is input to pin No. 12 of the first control chip, a signal a is input to pin No. 12 of the second control chip through the pin No. 11 of the first control chip via the second voltage follower N102A, and a second sine wave is output to pin No. 11 of the second control chip.
In addition, because the sine wave generating circuit and the frequency adjusting circuit comprise a control chip with the model number of X9110TV141, the MCU can input a high-level signal to the No. 9 pin of the control chip to determine that the MCU sends an adjusting command to the control chip in practical use.
Referring to fig. 8, after the operational amplifier circuit amplifies the second sine wave, the SIN _ OUT1 outputs a third sine wave, which is also a test signal actually input to the electronic product.
Further, in the present embodiment, the model of the MCU is STM320F 2812.
To sum up, the utility model discloses accessible effective voltage detection circuit detects when in-service use the utility model discloses whether the voltage amplitude effective value of the sinusoidal wave of output satisfies the requirement, detects through frequency detection circuit the utility model discloses whether the frequency of the sinusoidal wave of output satisfies the requirement, if appear unusually can adjust through amplitude regulating circuit the utility model discloses the sinusoidal wave amplitude of output, can adjust through frequency regulating circuit the utility model discloses the frequency of the fast sinusoidal wave that goes out, and then ensure and adopt the utility model discloses when testing electronic product, electronic product tests in qualified test environment all the time.
In light of the above, the present invention is not limited to the above embodiments, and various changes and modifications can be made by the worker without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A signal output control apparatus characterized by: comprises that
A sine wave generating circuit for generating a first sine wave;
the frequency adjusting circuit is used for inputting a frequency adjusting signal to a frequency adjusting signal input end of the sine wave generating circuit, and the sine wave generating circuit adjusts the frequency of the generated first sine wave according to the input frequency adjusting signal;
the amplitude adjusting circuit is used for adjusting the amplitude of the first sine wave and outputting a second sine wave;
an operational amplifier circuit for amplifying the second sine wave and outputting a third sine wave;
the effective voltage detection circuit is used for detecting the amplitude of the second sine wave and outputting a first detection signal;
the frequency detection circuit is used for detecting the frequency of the third sine wave and outputting a second detection signal;
and the MCU is used for receiving the first detection signal and the second detection signal, inputting an amplitude adjusting command to the amplitude adjusting circuit according to the first detection signal and inputting a frequency adjusting command to the frequency adjusting circuit according to the second detection signal.
2. A signal output control apparatus according to claim 1, characterized in that: and the second sine wave passes through a voltage follower and then is input into the effective voltage detection circuit.
3. A signal output control apparatus according to claim 1, characterized in that: the device also comprises a reference voltage calibration circuit, wherein the reference voltage calibration circuit is used for detecting the voltage difference between a measuring ground and a power ground and inputting a third detection signal to the MCU.
4. A signal output control apparatus according to claim 1, characterized in that: the sine wave generating circuit comprises a function signal generating chip with the model of ICL 8038.
5. A signal output control apparatus according to claim 1, characterized in that: the frequency adjusting circuit comprises a control chip with the model number of X9110TV141, and a No. 11 pin of the control chip inputs a frequency adjusting signal to the frequency adjusting signal input end through a second operational amplifier circuit.
6. A signal output control apparatus according to claim 1, characterized in that: the amplitude adjusting circuit comprises two control chips with the model number of X9110TV141, a first sine wave is input to a No. 12 pin of the first control chip, a signal A is input to a No. 12 pin of the second control chip through a second voltage follower by a No. 11 pin of the first control chip, and a second sine wave is output by a No. 11 pin of the second control chip.
7. A signal output control apparatus according to claim 1, characterized in that: the MCU model is STM320F 2812.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023258821.5U CN213903643U (en) | 2020-12-29 | 2020-12-29 | Signal output control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023258821.5U CN213903643U (en) | 2020-12-29 | 2020-12-29 | Signal output control device |
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| CN213903643U true CN213903643U (en) | 2021-08-06 |
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| CN202023258821.5U Active CN213903643U (en) | 2020-12-29 | 2020-12-29 | Signal output control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114071321A (en) * | 2021-10-09 | 2022-02-18 | 太原市华纳方盛科技有限公司 | System capable of adjusting high-voltage sound source |
| CN116505976A (en) * | 2023-06-29 | 2023-07-28 | 无锡量子感知研究所 | Data transmission parameter determining method and device and electronic equipment |
-
2020
- 2020-12-29 CN CN202023258821.5U patent/CN213903643U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114071321A (en) * | 2021-10-09 | 2022-02-18 | 太原市华纳方盛科技有限公司 | System capable of adjusting high-voltage sound source |
| CN116505976A (en) * | 2023-06-29 | 2023-07-28 | 无锡量子感知研究所 | Data transmission parameter determining method and device and electronic equipment |
| CN116505976B (en) * | 2023-06-29 | 2024-02-13 | 无锡量子感知研究所 | Data transmission parameter determining method and device and electronic equipment |
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