Control circuit and electronic product
By using a combined control of multiple switches in the control circuit, the error signal output problem caused by the error contact of a single switch is solved, and the reliability and convenience of control is improved, and it is suitable for module control of different importance.
Patent Information
- Application Number
- CN202420249842.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-31
AI Technical Summary
In the prior art, a single switch is prone to output incorrect control signals due to accidental touch, resulting in abnormal equipment functions and huge losses.
Design a control circuit, including the first and second photocouplers, and provides a diverse control mode through the combined control of multiple switches. The user can select a single switch, a combined switch or multiple switches according to the importance of the controlled module. comprehensive control to avoid accidental touch.
It improves the convenience and reliability of control, reduces the output of false signals caused by false touch, and enhances the protection of important modules.
Smart Images
Figure CN222262698U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuits, in particular to a control circuit and an electronic product. Background Art
[0002] Current devices often use a single switch to turn on or off, and control the output of the corresponding signal. However, for important control scenarios, if an accidental touch occurs, an erroneous control signal will be output, and the output of the erroneous signal may cause the abnormal opening or closing of the entire or part of the device, causing huge losses. Utility Model Content
[0003] Based on the above problems, the utility model provides a control circuit and an electronic product to reduce control anomalies caused by mis-touch of a single switch.
[0004] The utility model embodiment discloses the following technical solution:
[0005] A control circuit includes a first photocoupler PHC1 and a second photocoupler PHC2;
[0006] The positive electrode of the light emitter of the first photocoupler PHC1 is connected to the power supply terminal VCC2, the negative electrode of the light emitter is connected to the first end of the first switch K1, and the second end of the first switch K1 is grounded; the light receiver of the first photocoupler PHC1 is connected in series to the first loop, and the first loop is also connected to the first output port IO1 at the input end of the light receiver;
[0007] The positive electrode of the light emitter of the second photocoupler PHC2 is connected to the power supply terminal VCC2, the negative electrode of the light emitter is connected to the first end of the fourth switch K4, and the second end of the fourth switch K4 is grounded; the light receiver of the second photocoupler PHC2 is connected in series to the second loop, and the second loop is also connected to the second output port IO2 at the input end of the light receiver;
[0008] The second end of the first switch K1 is also connected to the first end of the second switch K2 , the second end of the second switch K2 is connected to the first end of the third switch K3 , and the second end of the third switch K3 is connected to the first end of the fourth switch K4 .
[0009] Optionally, the positive electrode of the light emitter of the first photocoupler PHC1 is connected to the first end of the resistor R1, and the second end of the resistor R1 is connected to the power supply end VCC2.
[0010] Optionally, the second end of the resistor R1 is also connected to the first end of the diode D1, and the second end of the diode D1 is connected to the cathode of the light emitter of the first photocoupler PHC1.
[0011] Optionally, the positive electrode of the light emitter of the second photocoupler PHC2 is connected to the first end of the resistor R4, and the second end of the resistor R4 is connected to the power supply terminal VCC2.
[0012] Optionally, the second end of the resistor R4 is also connected to the first end of the diode D2, and the second end of the diode D2 is connected to the cathode of the light emitter of the second photocoupler PHC2.
[0013] Optionally, the first loop includes a resistor R2, a first end of the resistor R2 is connected to a power supply end VCC1, a second end of the resistor R2 is connected to an input end of a light receiver of a first photocoupler PHC1, and an output end of the light receiver of the first photocoupler PHC1 is grounded;
[0014] The second end of the resistor R2 is connected to the first end of the resistor R3 , and the second end of the resistor R3 is the first output port IO1 .
[0015] Optionally, the second end of the resistor R3 is also connected to the first end of the capacitor C1, and the second end of the capacitor C1 is connected to the output end of the light receiver of the first photocoupler PHC1.
[0016] Optionally, the second loop includes a resistor R5, a first end of the resistor R5 is connected to the power supply end VCC1, a second end of the resistor R5 is connected to the input end of the light receiver of the second photocoupler PHC2, and an output end of the light receiver of the second photocoupler PHC2 is grounded;
[0017] The second end of the resistor R5 is connected to the first end of the resistor R6 , and the second end of the resistor R6 is the second output port IO2 .
[0018] Optionally, the second end of the resistor R6 is also connected to the first end of the capacitor C2, and the second end of the capacitor C2 is connected to the output end of the light receiver of the second photocoupler PHC2.
[0019] On the other hand, the present application also provides an electronic product that adopts the above-mentioned control circuit.
[0020] Compared with the prior art, the utility model has the following beneficial effects:
[0021] The utility model provides a control circuit and an electronic product, including a first photocoupler PHC1 and a second photocoupler PHC2, a first output port IO1 connected to a light receiver of the first photocoupler PHC1 outputs a first control signal, a second output port IO2 connected to a light receiver of the second photocoupler PHC2 outputs a second control signal, and a first switch K1, a second switch K2, a third switch K3 and a fourth switch K4 are connected through the light emitter of the first photocoupler PHC1 and the light emitter of the second photocoupler PHC2. The conduction of the first photocoupler PHC1 and the output signal of the first output port IO1 can be controlled by the first switch K1. The conduction of the second photocoupler PHC2 and the output signal of the second output port IO2 can be controlled by the fourth switch K4 alone (at least one of the second switch K2 and the third switch K3 remains disconnected), and the conduction of the second photocoupler PHC2 and the output signal of the second output port IO2 can also be controlled by the combination of the second switch K2 and the third switch K3 (the fourth switch K4 remains disconnected). The output of the first control signal and the second control signal can be comprehensively controlled by combining the first switch K1, the second switch K2, the third switch K3 and the fourth switch K4. In this way, a single switch control, a combined switch control, or a comprehensive control through multiple switches can be selected, providing a variety of control methods. Users can choose according to the importance of the controlled module. For example, when the importance of the controlled product or module is low, the user can choose a single switch control, and when the importance is high, the user can choose a combined switch control, or even a comprehensive control of the two signals to avoid accidental touches and improve the convenience and reliability of control. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0023] Figure 1 The present invention provides a structural schematic diagram of a control circuit. DETAILED DESCRIPTION
[0024] As described above, current devices often use a single switch to turn on or off and control the output of the corresponding signal. However, for important control scenarios, if an accidental touch occurs, an erroneous control signal will be output, and the output of the erroneous signal may cause the abnormal opening or closing of the entire or part of the device's functions, causing huge losses.
[0025] The utility model provides a control circuit and an electronic product, including a first photocoupler PHC1 and a second photocoupler PHC2, a first output port IO1 connected to a light receiver of the first photocoupler PHC1 outputs a first control signal, a second output port IO2 connected to a light receiver of the second photocoupler PHC2 outputs a second control signal, and a first switch K1, a second switch K2, a third switch K3 and a fourth switch K4 are connected through the light emitter of the first photocoupler PHC1 and the light emitter of the second photocoupler PHC2. The conduction of the first photocoupler PHC1 and the output signal of the first output port IO1 can be controlled by the first switch K1. The conduction of the second photocoupler PHC2 and the output signal of the second output port IO2 can be controlled by the fourth switch K4 alone (at least one of the second switch K2 and the third switch K3 remains disconnected), and the conduction of the second photocoupler PHC2 and the output signal of the second output port IO2 can also be controlled by the combination of the second switch K2 and the third switch K3 (the fourth switch K4 remains disconnected). The output of the first control signal and the second control signal can be comprehensively controlled by combining the first switch K1, the second switch K2, the third switch K3 and the fourth switch K4. In this way, a single switch control, a combined switch control, or a comprehensive control through multiple switches can be selected, providing a variety of control methods. Users can choose according to the importance of the controlled module. For example, when the importance of the controlled product or module is low, the user can choose a single switch control, and when the importance is high, the user can choose a combined switch control, or even a comprehensive control of the two signals to avoid accidental touches and improve the convenience and reliability of control.
[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figure 1 A structural schematic diagram of a control circuit is shown, a control circuit comprising: a first photoelectric coupler PHC1 and a second photoelectric coupler PHC2;
[0028] The positive pole of the light emitter of the first photocoupler PHC1 is connected to the power supply terminal VCC2, the negative pole of the light emitter is connected to the first end of the first switch K1, and the second end of the first switch K1 is grounded; the light receiver of the first photocoupler PHC1 is connected in series to the first loop, and the first loop is also connected to the first output port IO1 at the input end of the light receiver.
[0029] Specifically, when the first photocoupler PHC1 is grounded at the cathode of the light emitter, it is saturated and turned on, and then the first loop is turned on, and the first output port IO1 outputs a low level. When the first photocoupler PHC1 is not grounded at the cathode of the light emitter, the first photocoupler PHC1 cannot be saturated and turned on, and then the first loop cannot be turned on, and the first output port IO1 outputs a high level. Therefore, by controlling whether the first photocoupler PHC1 is grounded at the cathode of the light emitter, the output level of the first output port IO1 can be controlled.
[0030] The positive pole of the light emitter of the second photocoupler PHC2 is connected to the power supply terminal VCC2, the negative pole of the light emitter is connected to the first end of the fourth switch K4, and the second end of the fourth switch K4 is grounded; the light receiver of the second photocoupler PHC2 is connected in series to the second loop, and the second loop is also connected to the second output port IO2 at the input end of the light receiver.
[0031] Specifically, when the second photocoupler PHC2 is grounded at the cathode of the light emitter, it is saturated and turned on, and then the second loop is turned on, and the second output port IO2 outputs a low level. When the second photocoupler PHC2 is not grounded at the cathode of the light emitter, the second photocoupler PHC2 cannot be saturated and turned on, and then the second loop cannot be turned on, and the second output port IO2 outputs a high level. Therefore, by controlling whether the second photocoupler PHC2 is grounded at the cathode of the light emitter, the output level of the second output port IO2 can be controlled.
[0032] The second end of the first switch K1 is also connected to the first end of the second switch K2 , the second end of the second switch K2 is connected to the first end of the third switch K3 , and the second end of the third switch K3 is connected to the first end of the fourth switch K4 .
[0033] Whether the second photocoupler PHC2 is grounded at the cathode of the light emitter is controlled by a combination of the first switch K1, the second switch K2, the third switch K3 and the fourth switch K4, thereby controlling the level of the control signal output by the first output port IO1 and the second output port IO2.
[0034] According to the above control circuit, a single switch control can be selected (the first switch K1 is selected to control the signal of the first output port IO1, or the fourth switch K4 is selected to control the signal of the second output port IO2 (at least one of the second switch K2 and the third switch K3 remains disconnected)), or a combination switch control can be selected (the second switch K2 and the third switch K3 are selected to control the signal of the second output port IO2 (the fourth switch K4 remains disconnected)), or a plurality of switches can be used for comprehensive control (the first switch K1, the second switch K2, the third switch K3 and the fourth switch K4 are combined to control the first output port IO1 and the second output port IO2 to output a combined signal), providing a variety of control methods, and the user can select according to the importance of the controlled module. For example, the user can select a single switch control when the importance of the controlled product or module is low, and can select a combination switch control when the importance is high, or even a comprehensive control of the two signals to avoid accidental touches and improve the convenience and reliability of control.
[0035] In combination with the above-mentioned control circuit, the specific circuit structure can of course be implemented in multiple ways. The connection structure of the circuit provided by the present application can be as follows:
[0036] In one possible implementation.
[0037] The connection circuit for the light emitter side of the first photocoupler PHC1 can be: the positive electrode of the light emitter of the first photocoupler PHC1 is connected to the first end of the resistor R1, and the second end of the resistor R1 is connected to the power supply terminal VCC2. The second end of the resistor R1 is also connected to the first end of the diode D1, and the second end of the diode D1 is connected to the negative electrode of the light emitter of the first photocoupler PHC1.
[0038] Specifically, the cathode of the light emitter of the first photocoupler PHC1 is powered by the first power supply, and the first photocoupler PHC1 is turned on by controlling the first switch K1 to be closed, and the first output port IO1 is controlled to output a low-level control signal; the first switch K1 is then turned off, the first photocoupler PHC1 is not turned on, and the first output port IO1 outputs a high-level control signal. Therefore, the first output port IO1 can control the high and low levels of the output through the first switch K1.
[0039] The connection circuit for the light emitter side of the second photoelectric coupler PHC2 can be: the positive electrode of the light emitter of the second photoelectric coupler PHC2 is connected to the first end of the resistor R4, and the second end of the resistor R4 is connected to the power supply terminal VCC2. The second end of the resistor R4 is also connected to the first end of the diode D2, and the second end of the diode D2 is connected to the negative electrode of the light emitter of the second photoelectric coupler PHC2.
[0040] Specifically, in one implementation, the cathode of the light emitter of the second photocoupler PHC2 can be closed by controlling the fourth switch K4 to turn on the second photocoupler PHC2, and the second output port IO2 can be controlled to output a low-level control signal. In another implementation, the cathode of the light emitter of the second photocoupler PHC2 can be closed by controlling the second switch K2 and the third switch K3 to turn on the second photocoupler PHC2, and the second output port IO2 can be controlled to output a low-level control signal.
[0041] In addition, the fourth switch K4 can be controlled to be disconnected, and at least one of the second switch K2 and the third switch K3 can be disconnected, so that the second photoelectric coupling module is not turned on and the second output port IO2 outputs a high level signal.
[0042] In another possible implementation.
[0043] The connection circuit for the photoreceiver side of the first photocoupler PHC1 can be: the first loop includes a resistor R2, the first end of the resistor R2 is connected to the power supply terminal VCC1, the second end of the resistor R2 is connected to the input end of the photoreceiver of the first photocoupler PHC1, and the output end of the photoreceiver of the first photocoupler PHC1 is grounded; the second end of the resistor R2 is connected to the first end of the resistor R3, and the second end of the resistor R3 is the first output port IO1.
[0044] The second end of the resistor R3 is also connected to the first end of the capacitor C1 , and the second end of the capacitor C1 is connected to the output end of the light receiver of the first photocoupler PHC1 .
[0045] Specifically, when the first photocoupler PHC1 is turned on, the output end of the light receiver of the first photocoupler PHC1 is grounded, and the first output port IO1 outputs a low level; when the first photocoupler PHC1 is turned on, the output end of the light receiver of the first photocoupler PHC1 is not grounded, and the first output port IO1 outputs a high level.
[0046] The connection circuit for the photoreceiver side of the second photocoupler PHC2 can be: the second loop includes a resistor R5, the first end of the resistor R5 is connected to the power supply terminal VCC1, the second end of the resistor R5 is connected to the input end of the photoreceiver of the second photocoupler PHC2, and the output end of the photoreceiver of the second photocoupler PHC2 is grounded; the second end of the resistor R5 is connected to the first end of the resistor R6, and the second end of the resistor R6 is the second output port IO2.
[0047] The second end of the resistor R6 is also connected to the first end of the capacitor C2, and the second end of the capacitor C2 is connected to the output end of the light receiver of the second photocoupler PHC2.
[0048] Specifically, when the second photocoupler PHC2 is turned on, the output end of the light receiver of the second photocoupler PHC2 is grounded, and the second output port IO2 outputs a low level; when the second photocoupler PHC2 is turned on, the output end of the light receiver of the second photocoupler PHC2 is not grounded, and the second output port IO2 outputs a high level.
[0049] In summary, in one implementation, the first switch K1 is controlled to be turned on and off to control the level signal of the first output port IO1, and the first switch K1 is provided to control the output signal of the first output port IO1, thereby providing a basic single switch control method.
[0050] In one implementation, the second output switch output port is controlled to output a low-level signal by controlling the fourth switch K4 to be closed or the second switch K2 and the third switch K3 to be closed in combination. The second output port IO2 can also be controlled to output a high-level signal by controlling the fourth switch K4 to be opened, and at least one of the second switch K2 and the third switch K3 to be opened. In this way, for the signal of the second output port IO2, the fourth switch K4 can be controlled alone (at least one of the second switch K2 and the third switch K3 remains open), that is, a single switch control method can be adopted, or the second switch K2 and the third switch K3 can be controlled in combination (the fourth switch K4 remains open), that is, a combined switch control method can also be adopted.
[0051] In one implementation, the combined signal output by the first output port IO1 and the second output port is controlled by combining the control of the first switch K1, the second switch K2, the third switch K3 and the fourth switch K4. For details, see Table 1 below.
[0052] Table 1
[0053] Combination number K1 K2 K3 K4 IO1 IO2 1 1 0 0 0 0 1 2 1 1 0 0 0 1 3 1 0 1 0 0 1 4 1 1 1 0 0 0 5 1 0 0 1 0 0 6 1 1 0 1 0 0 7 1 0 1 1 0 0 8 1 1 1 1 0 0 9 0 0 0 1 1 0 10 0 1 0 1 1 0 11 0 0 1 1 1 0 12 0 1 1 1 1 0 13 0 0 0 0 1 1 14 0 1 0 0 1 1 15 0 0 1 0 1 1 16 0 1 1 0 1 0
[0054] Therefore, when only the signal of the first output port IO1 is needed to realize control, the present application can only use the first switch K1 for control, and the single switch control improves the convenience of control. When the signal of the second output port IO2 is needed to realize control, the fourth switch K4 can be used for single switch control, or the fourth switch K4 can be kept disconnected and the second switch K2 and the third switch K3 can be used for control. When the combination of the signals of the first output port IO1 and the second output port IO2 is needed to realize control, the first switch K1, the second switch K2, the third switch K3 and the fourth switch K4 can be combined in combination with Table 1 to realize control.
[0055] Based on the above-mentioned control circuit, the present application also provides an electronic product, which adopts the above-mentioned control circuit.
[0056] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0057] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A control circuit, characterized in that: comprising a first photocoupler PHC1 and a second photocoupler PHC2; The positive electrode of the light emitter of the first photocoupler PHC1 is connected to the power supply terminal VCC2, the negative electrode of the light emitter is connected to the first end of the first switch K1, and the second end of the first switch K1 is grounded; the light receiver of the first photocoupler PHC1 is connected in series to the first loop, and the first loop is also connected to the first output port IO1 at the input end of the light receiver; The positive electrode of the light emitter of the second photocoupler PHC2 is connected to the power supply terminal VCC2, the negative electrode of the light emitter is connected to the first end of the fourth switch K4, and the second end of the fourth switch K4 is grounded; the light receiver of the second photocoupler PHC2 is connected in series to the second loop, and the second loop is also connected to the second output port IO2 at the input end of the light receiver; The second end of the first switch K1 is also connected to the first end of the second switch K2 , the second end of the second switch K2 is connected to the first end of the third switch K3 , and the second end of the third switch K3 is connected to the first end of the fourth switch K4 .
2. The circuit according to claim 1, characterized in that The positive electrode of the light emitter of the first photocoupler PHC1 is connected to the first end of the resistor R1, and the second end of the resistor R1 is connected to the power supply terminal VCC2.
3. The circuit according to claim 2, characterized in that The second end of the resistor R1 is also connected to the first end of the diode D1, and the second end of the diode D1 is connected to the cathode of the light emitter of the first photocoupler PHC1.
4. The circuit according to claim 1, characterized in that The positive electrode of the light emitter of the second photocoupler PHC2 is connected to the first end of the resistor R4, and the second end of the resistor R4 is connected to the power supply terminal VCC2.
5. The circuit according to claim 4, characterized in that The second end of the resistor R4 is also connected to the first end of the diode D2, and the second end of the diode D2 is connected to the cathode of the light emitter of the second photocoupler PHC2.
6. The circuit according to claim 1, characterized in that The first loop includes a resistor R2, a first end of the resistor R2 is connected to a power supply end VCC1, a second end of the resistor R2 is connected to an input end of a light receiver of a first photocoupler PHC1, and an output end of the light receiver of the first photocoupler PHC1 is grounded; The second end of the resistor R2 is connected to the first end of the resistor R3 , and the second end of the resistor R3 is the first output port IO1 .
7. The circuit according to claim 6, characterized in that The second end of the resistor R3 is also connected to the first end of the capacitor C1 , and the second end of the capacitor C1 is connected to the output end of the light receiver of the first photocoupler PHC1 .
8. The circuit according to claim 1, characterized in that The second loop includes a resistor R5, a first end of the resistor R5 is connected to the power supply end VCC1, a second end of the resistor R5 is connected to the input end of the light receiver of the second photocoupler PHC2, and an output end of the light receiver of the second photocoupler PHC2 is grounded; The second end of the resistor R5 is connected to the first end of the resistor R6 , and the second end of the resistor R6 is the second output port IO2 .
9. The circuit according to claim 8, characterized in that The second end of the resistor R6 is also connected to the first end of the capacitor C2, and the second end of the capacitor C2 is connected to the output end of the light receiver of the second photocoupler PHC2.
10. An electronic product, characterized in that: A control circuit as described in any one of claims 1 to 9 is adopted.