CN221079206U - Hysteresis comparison circuit, hysteresis comparison device and sweeper - Google Patents
Hysteresis comparison circuit, hysteresis comparison device and sweeper Download PDFInfo
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- CN221079206U CN221079206U CN202322809373.0U CN202322809373U CN221079206U CN 221079206 U CN221079206 U CN 221079206U CN 202322809373 U CN202322809373 U CN 202322809373U CN 221079206 U CN221079206 U CN 221079206U
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- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 7
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- 230000001629 suppression Effects 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 claims description 4
- 230000007306 turnover Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004140 cleaning Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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Abstract
The utility model discloses a hysteresis comparison circuit, a hysteresis comparison device and a sweeper, which comprise a sampling amplification module; the driving module is electrically connected with the sampling amplifying module; the control and regulation module is respectively and electrically connected with the sampling and amplifying module and the driving module; and the hysteresis comparison circuit is electrically connected with the control and regulation module and the sampling and amplifying module respectively. By adding the hysteresis comparison circuit in the sweeper, the voltage value of the sampling amplification module can be judged by the hysteresis comparison circuit, if the voltage value exceeds the threshold values of different gears set by the hysteresis comparison circuit, IO can be overturned, an interrupt signal is sent to the control and regulation module, and the control and regulation module regulates output voltage according to the threshold values of different gears, so that the instantaneity of the motor of the sweeper in different working scenes is ensured.
Description
Technical Field
The utility model relates to the technical field of sweeper, in particular to a hysteresis comparison circuit, a hysteresis comparison device and a sweeper.
Background
In the prior art, the floor sweeping machine product has the condition that the number of the built-in analog-to-digital converters of an integrated circuit chip is insufficient, and usually, an additional controller unit is added or a switch circuit is used for switching a plurality of analog signal input channels, so that the analog-to-digital converters are expanded, but the real-time performance aiming at different motor working scenes of the floor sweeping machine cannot be ensured when the analog-to-digital converters are expanded by adopting the method.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the hysteresis comparison circuit, the hysteresis comparison device and the sweeper, and the hysteresis comparison circuit is used for comparing the voltage threshold values, so that the instantaneity of different motor working scenes of the sweeper is ensured, and the motor response speed of the sweeper is improved.
In one aspect, a sweeper according to an embodiment of the present utility model includes:
a sampling and amplifying module;
The driving module is electrically connected with the sampling amplifying module;
the control and regulation module is respectively and electrically connected with the sampling and amplifying module and the driving module;
and the hysteresis comparison circuit is respectively and electrically connected with the control and regulation module and the sampling and amplifying module.
According to some embodiments of the utility model, the sampling amplifying module comprises a sampling resistor and an operational amplifier, wherein the sampling resistor is respectively connected with the driving module and one end of the operational amplifier, and the other end of the operational amplifier is electrically connected with the hysteresis comparison circuit.
According to some embodiments of the utility model, the driving module comprises a sweeper battery, a driving circuit and a motor water pump, wherein the negative electrode of the sweeper battery is connected with one end of the sampling resistor, the positive electrode of the sweeper battery is connected with the first end of the driving circuit, the second end of the driving circuit is connected with the control and regulation module, the third end of the driving circuit is connected with one end of the motor water pump, and the other end of the motor water pump is connected with the other end of the sampling resistor.
According to some embodiments of the utility model, the regulation control module comprises a main control chip and a regulation circuit, wherein a first end of the main control chip is electrically connected with the driving module, a second end of the main control chip is electrically connected with the regulation circuit, and a third end of the main control chip is electrically connected with the hysteresis comparison circuit.
According to some embodiments of the utility model, the adjusting circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first MOSFET and a second MOSFET, wherein one ends of the first resistor, the second resistor and the third resistor are all connected with the hysteresis comparison circuit, the other end of the first resistor is connected with a power supply, the other end of the third resistor is respectively connected with the fourth resistor and the drain electrode of the first MOSFET, the other end of the fourth resistor is connected with the drain electrode of the second MOSFET, the grid electrodes of the first MOSFET and the second MOSFET are all connected with the hysteresis comparison circuit, and the source electrodes of the first MOSFET, the source electrodes of the second MOSFET and the other end of the second resistor are all grounded.
According to some embodiments of the present utility model, the hysteresis comparison circuit includes a first comparator, a first capacitor, a second capacitor, a third capacitor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, and a tenth resistor, one ends of the first capacitor and the fifth resistor are connected to the hysteresis comparison circuit, the other end of the first capacitor is grounded, the other end of the fifth resistor is connected to a fifth pin of the first comparator, one end of the sixth resistor is grounded, the other end of the sixth resistor is connected to one end of the second capacitor, one end of the seventh resistor, and a sixth pin of the first comparator, the other end of the second capacitor, the other end of the seventh resistor, and one end of the eighth resistor are connected to a seventh pin of the first comparator, the other end of the eighth resistor is connected to a second pin of the first comparator, the other end of the third capacitor is connected to another ground, the other end of the seventh resistor is connected to a tenth pin of the first comparator, the tenth resistor is connected to another end of the ninth resistor, and the tenth resistor is connected to another end of the fourth resistor, and the fourth resistor is connected to another end of the fourth resistor.
According to some embodiments of the utility model, the driving circuit includes a first chip, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a third MOSFET tube, a first diode, a second diode, a third diode, a fourth capacitor, a fifth capacitor and a sixth capacitor, one end of the eleventh resistor and one end of the twelfth resistor are connected to the gate of the third MOSFET tube, the other end of the eleventh resistor is grounded, the other end of the twelfth resistor is connected to the control adjustment module, the source of the third MOSFET tube is connected to one end of the thirteenth resistor, the other end of the thirteenth resistor is grounded, the drain of the third MOSFET tube, one end of the fifth capacitor, one end of the third diode, one end of the fourth capacitor, one end of the fifth capacitor, one end of the second diode and the first pin of the first chip are all connected to the fourteenth resistor, the other end of the fifth capacitor, one end of the fourth capacitor, the other end of the fourth capacitor, and the other end of the fourth capacitor are all connected to the anode of the fourth diode.
According to some embodiments of the utility model, the second diode and the third diode are bidirectional transient suppression diodes.
The utility model also provides a hysteresis comparison device which comprises the hysteresis comparison circuit.
The utility model also provides a sweeper, which comprises the hysteresis comparison circuit and the hysteresis comparison device.
The sweeper provided by the embodiment of the utility model has at least the following beneficial effects:
A sampling and amplifying module; the driving module is electrically connected with the sampling amplifying module; the control and regulation module is respectively and electrically connected with the sampling and amplifying module and the driving module; and the hysteresis comparison circuit is electrically connected with the control and regulation module and the sampling and amplifying module respectively. By adding the hysteresis comparison circuit in the sweeper, the voltage value of the sampling amplification module can be judged by the hysteresis comparison circuit, if the voltage value exceeds the threshold values of different gears set by the hysteresis comparison circuit, IO can be overturned, an interrupt signal is sent to the control and regulation module, and the control and regulation module regulates output voltage according to the threshold values of different gears, so that the instantaneity of the motor of the sweeper in different working scenes is ensured.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the overall structure of a hysteresis comparator circuit according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a hysteresis comparator circuit according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an adjusting circuit of a hysteresis comparator according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a hysteresis comparison circuit according to an embodiment of the present utility model;
fig. 5 is a schematic diagram of a driving circuit of a hysteresis comparator according to an embodiment of the present utility model.
Reference numerals:
A sample amplification module 100; a sampling resistor 110; an operational amplifier 120; a driving module 200; the sweeper motor 210; a driving circuit 220; a motor water pump 230; a control adjustment module 300; a main control chip 310; an adjusting circuit 320; hysteresis comparison circuit 400.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 2, the present embodiment provides a hysteresis comparison circuit, which includes: a sample amplification module 100; the driving module 200 is electrically connected with the sampling amplifying module 100; the control and regulation module 300 is electrically connected with the sampling and amplifying module 100 and the driving module 200 respectively; the hysteresis comparison circuit 400, the hysteresis comparison circuit 400 is connected with the control and regulation module 300 and the sampling and amplifying module 100 respectively. By adding the hysteresis comparison circuit 400 in the sweeper, the voltage value of the sampling amplification module 100 can be judged by the hysteresis comparison circuit 400, if the voltage value exceeds the threshold value of different gears set by the hysteresis comparison circuit 400, IO can be overturned, an interrupt signal is sent to the control and regulation module 300, and the control and regulation module 300 regulates the output voltage according to the threshold value of different gears, so that the instantaneity of the motor of the sweeper in different working scenes is ensured.
It should be noted that, after the motor is driven, the current is amplified through the operational amplifier 120 after the signal is generated by the sampling resistor 110, and is input into the hysteresis comparison circuit 400, the default first-gear voltage of the hysteresis comparison circuit 400 is 0.33V, the corresponding turnover voltage is 0.6V, i.e. the current of 0.6A can generate IO turnover, at this time, the IO turnover sends an interrupt signal to the control and regulation module 300, the control and regulation module 300 changes the reference voltage in the hysteresis comparison circuit 400 through the input and output port after processing, namely, the first-gear voltage is changed to 1.1V, the first-gear voltage is set to be the second-gear voltage, when the second-gear voltage is 1.1V, the corresponding IO turnover voltage is 1.3V, i.e. the electrode current smaller than 1.3A can not be continuously turned over, at this time, the control and regulation module 300 determines that the motor is running normally, when the second-gear voltage generates IO turnover, the current representing the motor is larger than 1.3A at this time, the control and regulation module 300 is in the early warning state, and determines that the motor damping is increased; the control and regulation module 300 improves the PWM of the motor, changes the reference voltage into 1.65V through changing the input and output ports, sets the reference voltage into a third gear voltage, sets the corresponding IO turnover current to be 1.8A when the third gear voltage is 1.65V, and controls the regulation module 300 to close the driving module 200 if the current acquired by the sampling resistor 110 exceeds the turnover current corresponding to the three-gear threshold value so as to realize overcurrent protection, and sends error reporting information of motor locked rotor.
Alternatively, the main control chip 310 in the driving control module 300 may be R328 or R329, which is not specifically limited in this embodiment.
The sampling amplifying module 100 includes a sampling resistor 110 and an operational amplifier 120, the sampling resistor 110 is connected to the driving module 200 and one end of the operational amplifier 120, and the other end of the operational amplifier 120 is electrically connected to the hysteresis comparing circuit 400. The sampling resistor 110 is connected with the driving module 300, so that current or voltage signals can be accurately measured, and the weak signals collected by the sampling resistor 110 are amplified through the operational amplifier 120, so that the sampling precision is improved, and the working state of the motor and the change of voltage or current are accurately monitored; the other end of the operational amplifier 120 is connected with a hysteresis comparison circuit 400 to realize the monitoring and protection of abnormal conditions such as motor overcurrent and overvoltage. Specifically, the hysteresis comparison circuit 400 may compare the magnitude relation between the sampling signal and the threshold according to a preset threshold, and trigger the protection measure when the sampling signal exceeds the preset threshold.
The driving module 200 includes a sweeper battery 210, a driving circuit 220 and a motor water pump 230, wherein the negative electrode of the sweeper battery 210 is connected with one end of the sampling resistor 110, the positive electrode of the sweeper battery 210 is connected with the first end of the driving circuit 220, the second end of the driving circuit 220 is connected with the control and regulation module 300, the third end 220 of the driving circuit is connected with one end of the motor water pump 230, and the other end of the motor water pump 230 is connected with the other end of the sampling resistor 110. The sweeper battery 210 is connected with the driving circuit 220, so that stable power supply is provided for the driving circuit 220, and sufficient energy supply of the motor water pump 230 is ensured; the second end of the driving circuit 220 is connected with the control and regulation module 300, and is used for receiving signals from the control and regulation module 300 to control the operation of the motor water pump 230, and the rotation speed and the working mode of the motor water pump 230 are regulated to meet the use requirements of different motors of the sweeper under different conditions, the third end of the driving circuit 220 is connected with the motor water pump 230, and the output signals of the driving circuit 220 are sent to the motor water pump 230, so that the motor water pump 230 is driven to work, and the conveying or circulating functions of cleaning liquid of the sweeper are provided. The other end of the motor water pump 230 is connected with the sampling resistor 110, so that the current is sampled and measured, the current change of the sweeper in the working process is monitored in real time, and a feedback and protection mechanism is triggered when an abnormal condition occurs, so that the safety and reliability of equipment and a system are ensured.
The adjusting control module 300 comprises a main control chip 310 and an adjusting circuit 320, a first end of the main control chip 310 is electrically connected with the driving module 200, a second end of the main control chip 310 is electrically connected with the adjusting circuit 320, and a third end of the main control chip 310 is electrically connected with the hysteresis comparison circuit 400. The control of the driving module 200 is achieved by connecting the first end of the main control chip 310 with the driving module 200. The main control chip 310 sends a control signal to the driving module 200, so that parameters such as the working state of the driving module 200, the motor rotation speed and the like are adjusted, and the accurate control of the sweeper is realized. The second end of the main control chip 310 is connected with the adjusting circuit 320, so that the adjusting circuit 320 can adjust parameters such as voltage and current according to signals sent by the main control chip 310, and normal operation and coordination work of each module of the sweeper are ensured. The feedback mechanism is implemented by connecting the third terminal of the main control chip 310 to the hysteresis comparison circuit 400. The hysteresis comparison circuit 400 can compare and judge input signals, and generates corresponding control signals according to comparison results to feed back the control signals to the main control chip 310, so that the main control chip 310 can make corresponding adjustment and IO overturn according to feedback signals, and adjust output voltages according to thresholds of different gears, thereby ensuring instantaneity of a motor of the sweeper in different working scenes.
Referring to fig. 2 and 3, in a further alternative embodiment, the adjusting circuit 320 includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first MOSFET and a second MOSFET, where one ends of the first resistor, the second resistor and the third resistor are connected to the hysteresis comparator, the other end of the first resistor is connected to a power supply, the other end of the third resistor is connected to the fourth resistor and the drain of the first MOSFET, the other end of the fourth resistor is connected to the drain of the second MOSFET, the gates of the first MOSFET and the second MOSFET are connected to the hysteresis comparator, and the sources of the first MOSFET, the second MOSFET and the other end of the second resistor are grounded. The gates of the first MOSFET and the second MOSFET are connected to the hysteresis comparison circuit, so that the control of the MOSFET is realized, and the hysteresis comparison circuit can adjust the on-off state and the working mode of the MOSFET according to the comparison result of input signals.
Referring to fig. 2 and 4, the hysteresis comparison circuit 400 includes a first comparator, a first capacitor, a second capacitor, an electric third capacitor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor and a tenth resistor, wherein one ends of the first capacitor and the fifth resistor are connected to the hysteresis comparison circuit, the other end of the first capacitor is grounded, the other end of the fifth resistor is connected to a fifth pin of the first comparator, one end of the sixth resistor is grounded, the other end of the sixth resistor is connected to one end of the second capacitor, one end of the seventh resistor and a sixth pin of the first comparator, the other end of the second capacitor, the other end of the seventh resistor and one end of the eighth resistor are connected to a seventh pin of the first comparator, the other end of the eighth resistor is grounded, one end of the ninth resistor and one end of the tenth resistor are connected to a third pin of the first comparator, the other end of the ninth resistor is connected to the hysteresis comparison circuit, and the other end of the tenth resistor is connected to a first pin of the control module. The hysteresis comparison circuit detects and compares the threshold value of the input signal through the first comparator, judges the output state of the voltage according to the threshold value, and realizes the comparison function with hysteresis effect through the combined connection between the first comparator and the capacitor resistor, when the input signal exceeds the threshold value, the output state can be changed, and thus the effective detection and response to the input signal are realized.
Referring to fig. 2 and 5, the driving circuit 320 includes a first chip, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a third MOSFET, a first diode, a second diode, a third diode, a fourth capacitor, a fifth capacitor, and a sixth capacitor, one end of the eleventh resistor and one end of the twelfth resistor are connected to the gate of the third MOSFET, the other end of the eleventh resistor is grounded, the other end of the twelfth resistor is connected to the control adjustment module, the source of the third MOSFET is connected to one end of the thirteenth resistor, the other end of the thirteenth resistor is grounded, the drain of the third MOSFET, one end of the fifth capacitor, one end of the sixth capacitor, one end of the third diode are all connected to the cathode of the first diode, the anode of the fifth capacitor, one end of the second diode, and the first pin of the first chip are all connected to the fourteenth resistor, one end of the third diode, one end of the second pin of the first chip and one end of the fourth capacitor are all connected to the anode of the first diode, and the other end of the fourth capacitor are all connected to the anode of the fourth diode. The first chip is connected with the third MOSFET to regulate output signals, and the first chip controls the conduction and the medium of the third MOSFET so as to amplify input signals. By using the first diode, the second diode, and the third diode, reverse voltage and reverse current are prevented from being generated in the circuit, and other elements in the circuit are protected.
Further, the second diode and the third diode are bidirectional transient suppression diodes, and the bidirectional transient suppression diodes can provide a voltage protection function, so that when sudden voltage shocks such as overvoltage or electrostatic breakdown occur in the circuit, the TVS diode can be rapidly conducted and absorb overvoltage so as to protect other sensitive elements in the circuit from damage, limit the voltage growth speed, reduce interference and voltage fluctuation in the circuit, and further improve the stability of the circuit and reduce faults.
In addition, the embodiment of the application also provides a hysteresis comparison device which comprises the hysteresis comparison circuit in any embodiment.
In addition, the embodiment of the application also provides a sweeper, which comprises the hysteresis comparison circuit and the hysteresis comparison device.
It should be noted that, the embodiments of the present application are not limited to any method modification, and the functions that can be implemented by the device or apparatus are implemented only based on the hardware architecture of the device or apparatus itself.
In the description of the present specification, a description referring to the terms "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A hysteresis comparator circuit, comprising:
a sampling and amplifying module;
The driving module is electrically connected with the sampling amplifying module;
the control and regulation module is respectively and electrically connected with the sampling and amplifying module and the driving module;
and the hysteresis comparison circuit is respectively and electrically connected with the control and regulation module and the sampling and amplifying module.
2. The hysteresis comparison circuit according to claim 1, wherein the sampling amplification module comprises a sampling resistor and an operational amplifier, the sampling resistor is respectively connected with the driving module and one end of the operational amplifier, and the other end of the operational amplifier is electrically connected with the hysteresis comparison circuit.
3. The hysteresis comparison circuit according to claim 2, wherein the driving module comprises a sweeper battery, a driving circuit and a motor water pump, wherein the negative electrode of the sweeper battery is connected with one end of the sampling resistor, the positive electrode of the sweeper battery is connected with the first end of the driving circuit, the second end of the driving circuit is connected with the control and regulation module, the third end of the driving circuit is connected with one end of the motor water pump, and the other end of the motor water pump is connected with the other end of the sampling resistor.
4. The hysteresis comparison circuit according to claim 1, wherein the adjustment control module comprises a main control chip and an adjustment circuit, a first end of the main control chip is electrically connected with the driving module, a second end of the main control chip is electrically connected with the adjustment circuit, and a third end of the main control chip is electrically connected with the hysteresis comparison circuit.
5. The hysteresis comparator circuit according to claim 4, wherein the adjusting circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first MOSFET and a second MOSFET, wherein one ends of the first resistor, the second resistor and the third resistor are all connected with the hysteresis comparator circuit, the other end of the first resistor is connected with a power supply, the other end of the third resistor is respectively connected with the fourth resistor and the drain of the first MOSFET, the other end of the fourth resistor is connected with the drain of the second MOSFET, the gates of the first MOSFET and the second MOSFET are all connected with the hysteresis comparator circuit, and the sources of the first MOSFET, the second MOSFET and the other end of the second resistor are all grounded.
6. The hysteresis comparison circuit according to claim 1, wherein the hysteresis comparison circuit comprises a first comparator, a first capacitor, a second capacitor, a third capacitor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor and a tenth resistor, one ends of the first capacitor and the fifth resistor are connected to the hysteresis comparison circuit, the other end of the first capacitor is grounded, the other end of the fifth resistor is connected to a fifth pin of the first comparator, one end of the sixth resistor is grounded, the other end of the sixth resistor is connected to one end of the second capacitor, one end of the seventh resistor and a sixth pin of the first comparator, the other end of the second capacitor, the other end of the seventh resistor and one end of the eighth resistor are connected to a seventh pin of the first comparator, one end of the eighth resistor is connected to a second pin of the first comparator, the other end of the fifth resistor is connected to a third pin of the first comparator, the other end of the sixth resistor is connected to a tenth pin of the first comparator, the other end of the eighth resistor is connected to a tenth pin of the first comparator, and the tenth resistor is connected to a fourth pin of the first comparator, and the tenth resistor is connected to the other end of the fourth resistor.
7. The hysteresis comparator circuit according to claim 3, wherein the driving circuit comprises a first chip, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a third MOSFET, a first diode, a second diode, a third diode, a fourth capacitor, a fifth capacitor and a sixth capacitor, one end of the eleventh resistor and one end of the twelfth resistor are connected to the gate of the third MOSFET, the other end of the eleventh resistor is grounded, the other end of the twelfth resistor is connected to the control adjustment module, the source of the third MOSFET is connected to one end of the thirteenth resistor, the other end of the thirteenth resistor is grounded, the drain of the third MOSFET, one end of the fifth capacitor, one end of the sixth capacitor, one end of the third diode are all connected to the cathode of the first diode, the anode of the fifth capacitor, one end of the second diode and the first pin of the first chip are all connected to the first resistor, the other end of the fourth capacitor is all connected to the anode of the fourth capacitor and the other end of the fourth diode, and the other end of the fourth capacitor are all connected to the anode of the fourth capacitor and the fourth capacitor.
8. The hysteretic comparison circuit of claim 7, wherein the second diode and the third diode are bi-directional transient suppression diodes.
9. A hysteresis comparator, comprising:
a hysteresis comparison circuit as claimed in any one of claims 1 to 8.
10. A sweeper, comprising:
a hysteresis comparison circuit as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322809373.0U CN221079206U (en) | 2023-10-18 | 2023-10-18 | Hysteresis comparison circuit, hysteresis comparison device and sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322809373.0U CN221079206U (en) | 2023-10-18 | 2023-10-18 | Hysteresis comparison circuit, hysteresis comparison device and sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221079206U true CN221079206U (en) | 2024-06-04 |
Family
ID=91249739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322809373.0U Active CN221079206U (en) | 2023-10-18 | 2023-10-18 | Hysteresis comparison circuit, hysteresis comparison device and sweeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221079206U (en) |
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2023
- 2023-10-18 CN CN202322809373.0U patent/CN221079206U/en active Active
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