CN213637691U - Clock control circuit based on electric power analysis instrument - Google Patents
Clock control circuit based on electric power analysis instrument Download PDFInfo
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- CN213637691U CN213637691U CN202022525763.1U CN202022525763U CN213637691U CN 213637691 U CN213637691 U CN 213637691U CN 202022525763 U CN202022525763 U CN 202022525763U CN 213637691 U CN213637691 U CN 213637691U
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- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model relates to the field of electronic technology, specifically disclose a clock control circuit based on electric power analysis instrument, including signal generation module and control module, the signal generation module is including connecting gradually power supply unit, signal generation unit and the partial pressure unit that forms the return circuit, the partial pressure unit includes first resistance and second resistance, first resistance one end with the signal generation unit is connected, second resistance one end with the negative pole of power supply unit is connected, and this second resistance with the link ground connection of power supply unit negative pole to it has a first electric capacity to connect in parallel on this second resistance, the first resistance other end with the second resistance other end concatenates, and concatenates the department in this first resistance, second resistance and be provided with signal output part, signal output part with control module connects. Through setting up the partial pressure unit, can disperse the voltage of signal generation module, and then can protect the components and parts in the signal generation module not to receive destruction to can also guarantee that clock signal can send smoothly.
Description
Technical Field
The utility model relates to the field of electronic technology, more specifically say, relate to a clock control circuit based on electric power analysis instrument.
Background
The application of alternating current is very wide, and the accuracy of sampling the alternating current is very important for alternating current electric equipment. The common power analysis instrument has the functions of high-precision measurement, accident alarm reminding, power quality analysis, fault recording and broadcasting analysis, gateway-level metering and the like.
In the existing alternating current information sampling equipment, a CPU (central processing unit) needs to be controlled to be used through a clock signal, in the existing clock control circuit based on the power analysis instrument, the clock signal transmission is often influenced due to overlarge circuit voltage, and on the other hand, the situation that components are burnt out or damaged is easily caused due to the fact that the components on the circuit bear overlarge voltage.
SUMMERY OF THE UTILITY MODEL
In view of this, to the above object, the utility model provides a clock control circuit based on electric power analysis instrument.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a clock control circuit based on electric power analysis instrument, includes signal generation module and control module, signal generation module is including connecting gradually power supply unit, signal generation unit and the partial pressure unit that forms the return circuit, the partial pressure unit includes first resistance and second resistance, first resistance one end with signal generation unit connects, second resistance one end with power supply unit's negative pole is connected, and this second resistance with the link ground connection of power supply unit negative pole to it has a first electric capacity to connect in parallel on this second resistance, the first resistance other end with the second resistance other end concatenates, and concatenates in this first resistance, second resistance and locates to be provided with signal output, signal output with control module connects.
As the preferred scheme of the utility model, the signal generation unit includes crystal oscillator and third resistance, third resistance one end with the power supply unit positive pole is connected, this third resistance other end with first ohmic connection, the crystal oscillator connect in parallel in on the third resistance.
As a preferable embodiment of the present invention, the resistance of the third resistor is 100 Ω.
As a preferred embodiment of the present invention, the resistance of the first resistor is the same as the resistance of the second resistor.
As the utility model discloses an optimal scheme, control module includes control chip and one-way conduction unit, signal output part connect in control chip's second pin, one-way conduction unit includes first diode and second diode, the positive pole and the power supply of first diode are connected, the positive pole and the drive power supply of second diode are connected, the negative pole of first diode, the negative pole of second diode one-way connect in control chip's sixth pin.
As the preferred embodiment of the present invention, the cathode junction of the first diode and the cathode junction of the second diode are connected to a second capacitor, and the other end of the second capacitor is grounded.
According to the above technical scheme, the utility model discloses a beneficial effect does: through setting up the partial pressure unit, can be with the voltage dispersion of signal generation module, and then can protect the components and parts in the signal generation module not to receive destruction to can also guarantee that clock signal can send smoothly, in order to guarantee that electric power analysis instrument normal operating and not damaged.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic circuit diagram of a signal generating module according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a control module according to an embodiment of the present invention.
In the figure: 1-a crystal oscillator; 2-control chip.
Detailed Description
Referring to fig. 1-2, in an alternative embodiment, a clock control circuit based on a power analysis meter includes a signal generation module and a control module, the signal generation module comprises a power supply unit, a signal generation unit and a voltage division unit which are sequentially connected to form a loop, the voltage division unit comprises a first resistor R9 and a second resistor R13, one end of the first resistor R9 is connected with the signal generation unit, one end of the second resistor R13 is connected with the negative pole of the power supply unit, the connection end of the second resistor R13 and the negative pole of the power supply unit is grounded, a first capacitor C31 is connected in parallel with the second resistor R13, the other end of the first resistor R9 is connected in series with the other end of the second resistor R13, and a signal output end is arranged at the serial connection position of the first resistor R9 and the second resistor R13, and the signal output end is connected with the control module.
Specifically, the power supply unit is two dry batteries, and the voltage value provided by the power supply unit is 3.6V. In addition, the first capacitor C31 is used to filter noise and eliminate interference, and the capacitance of the first capacitor C31 is 100 mF.
Referring to fig. 1-2, in an alternative embodiment of the clock control circuit based on a power analysis meter, the signal generating unit includes a crystal oscillator 1 and a third resistor R7, one end of the third resistor R7 is connected to the positive electrode of the power supply unit, the other end of the third resistor R7 is connected to the first resistor R9, and the crystal oscillator 1 is connected to the third resistor R7 in parallel. In the clock control circuit based on the power analysis instrument of the embodiment, the crystal oscillator 1 includes a first branch and a second branch, wherein the first branch is connected to the power supply unit, the second branch is connected to one end of the first resistor R9, and the third resistor R7 plays a role in protection, so as to prevent the voltage of the crystal oscillator 1 from being too large.
Referring to fig. 1-2, in an alternative embodiment of the clock control circuit based on the power analysis meter, the third resistor R7 has a resistance of 100 Ω. In an alternative embodiment of the clock control circuit based on the power analysis meter, the resistance value of the first resistor R9 is the same as that of the second resistor R13. Specifically, the resistances of the first resistor R9 and the second resistor R13 are 1000K Ω.
Referring to fig. 1-2, in an alternative embodiment of the clock control circuit based on a power analysis meter, the control module includes a control chip 2 and a unidirectional conducting unit, the signal output terminal is connected to a second pin (i.e., an SCL pin in the figure) of the control chip 2, the unidirectional conducting unit includes a first diode D2 and a second diode D1, an anode of the first diode D2 is connected to a power supply, an anode of the second diode D1 is connected to a driving power supply, and a cathode of the first diode D2 and a cathode of the second diode D1 are connected to a sixth pin of the control chip 2.
In the clock control circuit based on the power analysis meter of this embodiment, the voltage of the power supply source connected to the anode of the first diode D2 is 5V, and the voltage of the drive power source connected to the anode of the second diode D1 is 3.6V. In addition, the chip model of the control chip 2 is RX-8025 TUB.
Referring to fig. 1-2, in an alternative embodiment of the clock control circuit based on the power analysis meter, a second capacitor C5 is connected to the junction of the cathode of the first diode D2 and the cathode of the second diode D1, and the other end of the second capacitor C5 is grounded.
In the power analysis meter-based clock control circuit of this embodiment, the capacitance value of the second capacitor C5 is 10 microfarads, in which the second capacitor C5 functions as a filter. The principle of the circuit for generating the clock signal is as follows: the crystal oscillator 1 sends a clock signal to the control module, the signal generation module adopts two resistors with the same resistance, and then the voltage in the signal generation module is halved, so that the voltage in the signal generation module is effectively reduced, the control module is protected, and the crystal oscillator 1 can be smoothly driven to send the clock signal.
Through setting up the partial pressure unit, can be with the voltage dispersion of signal generation module, and then can protect the components and parts in the signal generation module not to receive destruction to can also guarantee that clock signal can send smoothly, in order to guarantee that electric power analysis instrument normal operating and not damaged.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a clock control circuit based on electric power analysis instrument, its characterized in that, includes signal generation module and control module, the signal generation module is including connecting gradually power supply unit, signal generation unit and the partial pressure unit that forms the return circuit, the partial pressure unit includes first resistance and second resistance, first resistance one end with the signal generation unit is connected, second resistance one end with the negative pole of power supply unit is connected, and this second resistance with the link ground connection of power supply unit negative pole to it has a first electric capacity to connect in parallel on this second resistance, the first resistance other end with the second resistance other end concatenates, and concatenates the department in this first resistance, second resistance and is provided with signal output part, signal output part with control module connects.
2. The clock control circuit of claim 1, wherein the signal generating unit comprises a crystal oscillator and a third resistor, one end of the third resistor is connected to the positive electrode of the power supply unit, the other end of the third resistor is connected to the first resistor, and the crystal oscillator is connected to the third resistor in parallel.
3. The clock control circuit based on the power analysis meter as claimed in claim 2, wherein the third resistor has a resistance of 100 Ω.
4. The clock control circuit based on the power analysis meter as claimed in claim 1, wherein the resistance of the first resistor is the same as the resistance of the second resistor.
5. The clock control circuit based on the power analysis meter as claimed in claim 1, wherein the control module includes a control chip and a unidirectional conducting unit, the signal output terminal is connected to the second pin of the control chip, the unidirectional conducting unit includes a first diode and a second diode, the anode of the first diode is connected to a power supply, the anode of the second diode is connected to a driving power supply, and the cathode of the first diode and the cathode of the second diode are connected to the sixth pin of the control chip.
6. The clock control circuit based on the power analysis meter as recited in claim 5, wherein a second capacitor is connected to the junction of the cathode of the first diode and the cathode of the second diode, and the other end of the second capacitor is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022525763.1U CN213637691U (en) | 2020-11-05 | 2020-11-05 | Clock control circuit based on electric power analysis instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022525763.1U CN213637691U (en) | 2020-11-05 | 2020-11-05 | Clock control circuit based on electric power analysis instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213637691U true CN213637691U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022525763.1U Active CN213637691U (en) | 2020-11-05 | 2020-11-05 | Clock control circuit based on electric power analysis instrument |
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| Country | Link |
|---|---|
| CN (1) | CN213637691U (en) |
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2020
- 2020-11-05 CN CN202022525763.1U patent/CN213637691U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A clock control circuit based on power analyzer Effective date of registration: 20220518 Granted publication date: 20210706 Pledgee: Daxin sub branch of Bank of Guangzhou Co.,Ltd. Pledgor: GUANGZHOU NIKEY ELECTRIC TECHNOLOGY Co.,Ltd. Registration number: Y2021440000008 |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240123 Granted publication date: 20210706 |