CN111210610A - Control method, circuit board and electronic equipment - Google Patents
Control method, circuit board and electronic equipment Download PDFInfo
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- CN111210610A CN111210610A CN201811399265.8A CN201811399265A CN111210610A CN 111210610 A CN111210610 A CN 111210610A CN 201811399265 A CN201811399265 A CN 201811399265A CN 111210610 A CN111210610 A CN 111210610A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/10—Power supply of remote control devices
- G08C2201/12—Power saving techniques of remote control or controlled devices
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Abstract
The invention discloses a control method, a circuit board and electronic equipment, wherein the method comprises the following steps: when the control module controls the first switch module to be in a conducting state, the power supply module supplies power to the power storage module and the light emitting module, so that the light emitting module emits light with first power consumption, and the power storage module starts to store power; when the control module controls the first switch module to be in the off state, the power supply module is in the off state, and the power storage module supplies power to the light emitting module, so that the light emitting module emits light with second power consumption. In this way, the power consumption of the light emitting module and thus the power consumption of the power supply module can be reduced.
Description
Technical Field
The present invention relates to the field of electronic circuit technology, and more particularly, to a control method, a circuit board and an electronic device.
Background
With the development of technology, more and more electronic devices are equipped with remote controllers so that users can remotely control the electronic devices. Generally, an infrared light emitting diode is provided in the remote controller to emit infrared light.
In the prior art, a schematic circuit structure diagram inside a remote controller is shown in fig. 1, and a Micro Control Unit (MCU) is used to control a transistor (transistor) Q1 circuit to turn on and off an infrared light emitting diode D1.
Since the base current of Q1 is small, i.e., the current on the Q1 path is small, the current on the R2, D1, Q2 paths is approximately equal to the output current of BAT 1. Since R1 and Q2 consume a certain amount of power, BAT1 is inefficient to use. Therefore, in the prior art, in the circuit structure of the remote controller, the current consumed by the infrared light emitting diode D1 is large, which results in a large current of a battery (BAT 1 in fig. 1) required by the remote controller, high power consumption and low battery utilization efficiency.
Disclosure of Invention
The embodiment of the invention provides a control method, a circuit board and electronic equipment, which improve the utilization efficiency of a power supply and further reduce the power consumption of a battery.
In a first aspect, an embodiment of the present invention provides a control method, which is applied to a circuit board, where the circuit board includes: the device comprises a control module, a power supply module, an electric storage module and a light-emitting module; the power storage module and the control module are connected through a first switch module; the method comprises the following steps:
when the control module controls the first switch module to be in a conducting state, the power supply module supplies power to the power storage module and the light emitting module, so that the light emitting module emits light with first power consumption, and the power storage module starts to store power;
when the control module controls the first switch module to be in a disconnected state, the power supply module is in a closed state, and the power storage module supplies power to the light emitting module, so that the sending module emits light with second power consumption.
Optionally, the control circuit is connected to the first switch module, and when the control module outputs a high level, the first switch module is in a conducting state; when the control module outputs a low level, the first switch module is in an off state.
Optionally, the method further comprises:
the control module determines a duty ratio according to the conduction voltage of the light emitting module;
the control module controls the first switching module to be in an on or off state based on the duty ratio.
Optionally, the circuit board further comprises: a second switch module; the second switch module is connected with the control module; the method further comprises the following steps:
if the control module sends the infrared waveform to the second switch module, when the control module controls the second switch module to be in a conducting state based on the infrared waveform, controlling the duty ratio of the first switch module to be a first duty ratio; when the control module controls the second switch module to be in an off state based on the infrared waveform, controlling the duty ratio of the first switch module to be a second duty ratio, wherein the second duty ratio is smaller than the first duty ratio;
if the control module does not send the infrared waveform to the second switch module, the first switch module and the second switch module are disconnected, and the circuit board is in an inoperative state.
Optionally, the light emitting module comprises at least one infrared light emitting diode.
In a second aspect, an embodiment of the present invention provides a circuit board, including: the device comprises a control module, a power supply module, an electric storage module and a light-emitting module; the power storage module and the control module are connected through a first switch module;
the control module is used for controlling the first switch module to be in a conducting state or a disconnecting state;
when the first switch module is in a conducting state, the power supply module is used for supplying power to the power storage module and the light-emitting module; the light emitting module emits light with first power consumption, and the power storage module starts power storage;
when the first switch module is in a disconnected state, the power supply module is in a closed state, the power storage module is further used for supplying power to the light emitting module, and the sending module emits light with second power consumption.
Optionally, the control module is connected to the first switch module, and when the control module outputs a high level, the first switch module is in a conducting state; when the control module outputs a low level, the first switch module is in an off state.
Optionally, the control module is configured to determine a duty ratio according to a turn-on voltage of the light emitting module;
the control module is further configured to control the first switching module to be in an on or off state based on the duty cycle.
Optionally, the circuit board further comprises: a second switch module; the second switch module is connected between the power storage module and the light emitting module, and is also connected with the control module; wherein the content of the first and second substances,
if the control module is used for sending the infrared waveform to the second switch module, when the control module controls the second switch module to be in a conducting state based on the infrared waveform, the control module is used for controlling the duty ratio of the first switch module to be a first duty ratio; when the control module controls the second switch module to be in an off state based on the infrared waveform, the control module is further configured to control the duty ratio of the first switch module to be a second duty ratio, and the second duty ratio is smaller than the first duty ratio;
if the control module does not send the infrared waveform to the second switch module, the first switch module and the second switch module are disconnected, and the circuit board is in an inoperative state.
In a third aspect, an embodiment of the present invention provides an electronic device, where the electronic device includes:
a housing;
a circuit board as set forth in the second aspect or any one of the second aspects is provided in the housing.
The invention has the following beneficial effects:
in the technical solution of the embodiment of the present invention, the circuit board includes: the device comprises a control module, a power supply module, an electric storage module and a light-emitting module; the power storage module is connected with the power supply module through the first switch module; when the control module controls the first switch module to be in a conducting state, the power supply module supplies power to the power storage module and the light emitting module, so that the light emitting module emits light with first power consumption, and the power storage module starts to store power; when the control module controls the first switch module to be in the off state, the power supply module is in the off state, and the power storage module supplies power to the light emitting module, so that the sending module emits light with second power consumption. In this way, the power consumption of the light emitting module can be reduced, and the power consumption of the power supply module can be further reduced.
Drawings
FIG. 1 is a schematic diagram of an infrared emitting circuit in the prior art;
fig. 2 is a schematic structural diagram of a circuit board according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a remote controller circuit board according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a voltage waveform sent by the MCU to the Q1 according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a voltage waveform sent by the MCU to the Q2 according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
Fig. 2 is a schematic structural diagram of a circuit board according to an embodiment of the present invention. The circuit board can be applied to an infrared remote controller, an infrared laser device and other infrared devices, for example, and the embodiment of the invention is not limited. The circuit board is applied to an infrared remote controller as an example.
As shown in fig. 2, the circuit board includes: the power supply module 201, the control module 202, the first switch module 203, the power storage module 204 and the light emitting module 205. The power storage module 204 and the control module 202 are connected by a first switch module 203. The control module 202 may control the first switching module 203 to be in an on state or an off state. When the first switching module 203 is in an on state or an off state, the power consumption consumed by the light emitting module 205 may be different.
Referring to fig. 2 and fig. 3, fig. 3 is a flowchart of a control method according to an embodiment of the present invention. The flow chart may be applied to the circuit board shown in fig. 2 or a similar circuit board. As shown in fig. 3, the process includes:
s301, when the control module 202 controls the first switch module 203 to be in a conducting state, the power supply module 201 supplies power to the power storage module 204 and the light emitting module 205; the light emitting module 205 emits light with the first power consumption, and the power storage module 204 starts power storage.
S302, when the control module 202 controls the first switch module 203 to be in the off state, the power supply module 201 is in the off state, the power storage module 204 supplies power to the light emitting module 205, and the light emitting module 205 emits light with the second power consumption.
Alternatively, the power storage module 204 may store the electric energy generated by the power supply module 201, and the stored electric energy is provided to the light emitting module 205 by the power storage module 204 when the power supply module 201 is in the off state. Therefore, in the circuit board shown in fig. 2, the power supply module 201 does not need to be in an operating state all the time. For example, the power supply module 201 may be periodically in an operating state. When the power supply module 201 is in an operating state (for example, the first switching module 203 is in a conducting state), the power supply module 201 supplies power to the power storage module 204 and the light emitting module 205, and the power storage module 204 starts to store power. When the power supply module 201 does not operate (for example, the first switch module 203 is in an off state), the power storage module 204 may supply power to the light emitting module 205. In this way, the power supply time of the light emitting module 205 can be increased, which helps to reduce the power consumption of the power supply module 201.
Optionally, the control module 202 is connected to the first switch module 203, and when the control module 202 outputs a high level, the first switch module 203 is in a conducting state; when the control module 202 outputs a low level, the first switching module 203 is in an open state.
Alternatively, the power supply module 201 may include a battery, which may be a dry battery, a button battery, or the like, and the embodiment of the present invention is not limited thereto. The control module 202 may include an MCU, and may also be another control chip, which is not limited in the embodiments of the present invention. In the embodiment of the present invention, the control module 202 is taken as an MCU as an example.
Optionally, the first switching module 203 may include a first resistor R1 and a first transistor Q1. Alternatively, the first transistor Q1 may be an N-type transistor or a P-type transistor, which is not limited in the embodiments of the present invention. Alternatively, the first switch module 203 may include a first resistor R1 and a first Metal Oxide Semiconductor (MOS) Q1. Optionally, the first MOS transistor Q1 may be an N-type MOS transistor or a P-type MOS transistor, which is not limited in the embodiment of the present invention. The first switch module 203 includes a first resistor R1 and a first transistor Q1.
Alternatively, the power storage module 204 may include an inductor L, a first capacitor C1, and a schottky diode D1.
Alternatively, the light emitting module 205 may include at least one infrared light emitting diode, and the embodiment of the present invention takes the example that the light emitting module 205 includes one infrared light emitting diode D2.
Fig. 4 is a schematic view of a circuit board of a remote controller according to an embodiment of the present disclosure. The following description will be made taking the circuit board shown in fig. 4 as an example.
As shown in fig. 4, the MCU sends a voltage waveform to the first transistor Q1 through a Pulse Width Modulation (PWM) interface 1 to control the on/off of the first transistor Q1.
Alternatively, when the first transistor Q1 is an N-type transistor, it is turned on when the PWM1 outputs a high level and is turned off when the PWM1 outputs a low level; when the first transistor Q1 is a P-type transistor, it is turned on when the PWM1 outputs a low level and is turned off when the PWM1 outputs a high level. The first transistor Q1 is exemplified as an N-type transistor.
In the circuit board shown in fig. 4, there are two consecutive processes for the led D2 to illuminate:
the first process is as follows: when the PWM1 outputs a high level, the first transistor Q1 is turned on, the inductor L and the first capacitor C1 start to store power, and the infrared light emitting diode D2 lights up (power consumption is the first power consumption).
The second process is as follows: when the PWM1 outputs a low level, the first transistor Q1 is turned off, the inductor L and the first capacitor C1 start to provide voltage to the infrared light emitting diode D2, and the inductor L, the first capacitor C1, the infrared light emitting diode D2 and the schottky diode D1 form a loop, at this time, the infrared light emitting diode D2 lights (the power consumption is the second power consumption).
It should be noted that the first resistor R1 functions as a current limiter in the first process, so as to prevent the first transistor Q1 from being damaged when an excessive current passes through the first transistor Q1.
As an example, the MCU may determine the duty ratio according to the turn-on voltage of the infrared light emitting diode D2; q1 is controlled to be in an on or off state based on the duty cycle.
In addition, the Q1 has an open-close period, and in one period, the Q1 is closed for T1, and the open time is T2, so that the duty ratio is T1/(T1+ T2). However, the length of the closing time of Q1 determines the amount of voltage stored in the power storage module (L1C1 circuit). For example, when the on time of Q1 is long, the voltage stored in the power storage module is large, and when the on time of Q1 is short, the voltage stored in the power storage module is small. Further, to ensure that D2 can be lit, the voltage of the storage module needs to be equal to or higher than the on voltage of D2. Therefore, the MCU can determine the voltage which needs to be stored by the power storage module according to the conduction voltage of D2, and further determine the closing time of Q1, and further determine the duty ratio of Q1.
For example, assume that the turn-on voltage of D2 is 1V and the voltage of battery BAT1 is 5V. Taking an open-close of Q1 as an example, the MCU may set the close time of Q1 to 1us, and assuming that one open-close period of Q1 is 5us, the duty cycle is 1/5 ═ 0.2, and the storage voltage of the storage module is 0.2 × 5V ═ 1V. I.e., the voltage stored by the storage module is equal to the on-voltage of D2. Therefore, during this period, when the turn-on voltage of D2 is 1V, the MCU can set the duty cycle to 0.2. During the next cycle, the MCU may determine the duty cycle of Q1 in a similar manner.
As can be seen from the foregoing, the closing or opening of the Q1 can be controlled by a voltage waveform emitted by the MCU (e.g., a voltage waveform emitted by the PWM 1), please refer to fig. 5, which is a schematic diagram of a voltage waveform emitted by the MCU to the Q1 according to an embodiment of the present application. As shown in fig. 5, Q1 is closed when the voltage waveform is at high level 1 during t1, and Q1 is open when the voltage waveform is at low level 0 during t3(t3 — t2-t 1). Thus, one cycle of the voltage waveform in fig. 5 and one open-close cycle of Q1 described above.
It should be noted that, in one period of the voltage waveform diagram, the high level duration and the low level duration may be different, and are determined by the magnitude of the voltage output by the battery. For example, when the battery output voltage is large, the duration of the high level is short, and the duration of the low level is long. When the battery output voltage is small, the duration of the high level is long, and the duration of the low level is short.
It should be noted that the duty ratio corresponding to the on-voltage of D2 may be preset and stored for use.
Optionally, the second switching module 206 may include a second resistor R2 and a second transistor Q2. Alternatively, the second transistor Q1 may be an N-type transistor or a P-type transistor, which is not limited in the embodiments of the present invention. Alternatively, the second switching module 206 may include a second resistor R2 and a second MOS transistor Q2. Optionally, the second MOS transistor Q2 may be an N-type MOS transistor or a P-type MOS transistor, which is not limited in the embodiment of the present invention. The second switch module 206 includes a second resistor R2 and a second transistor Q2.
Alternatively, when the second transistor Q2 is an N-type transistor, it is turned on when the PWM2 outputs a high level and is turned off when the PWM2 outputs a low level; when the second transistor Q2 is a P-type transistor, it is turned on when the PWM2 outputs a low level and is turned off when the PWM2 outputs a high level. The second transistor Q2 is exemplified as an N-type transistor.
As another example, the MCU may control the second transistor Q2 to be in an on state or an off state. When the Q2 is in a conducting state, the MCU controls the duty ratio of the first transistor Q1 to be a first duty ratio; when the second transistor Q2 is in an off state, the MCU controls the duty cycle of the first transistor Q1 to be a second duty cycle, which is smaller than the first duty cycle.
Please refer to fig. 6, which is a schematic diagram of a voltage waveform sent by the MCU to the Q2 according to an embodiment of the present application.
Referring to fig. 4 and 6, the MCU sends a voltage waveform to the second transistor Q2 through the PWM 2. When the voltage waveform that the MCU sends out to Q2 is at high level 1, Q2 is in a closed state, and the MCU sets the duty cycle of Q1 high, i.e., the on-time of Q1 is relatively long. When the voltage waveform emitted by the MCU is at low level 0, Q2 is in off state, and the duty cycle of MCU setting Q1 is relatively low, i.e. the on time of Q1 is relatively short.
It should be noted that the second resistor R2 functions as a current limiter during the process of sending the voltage waveform to the second transistor Q2 by the PWM2, so as to prevent the second transistor Q2 from being damaged when an excessive current passes through the second transistor Q2.
It should be noted that, as shown in fig. 1, in the prior art, when the on-current of the infrared light emitting diode D2 is 150mA, and the voltage of the BAT1 is 3.3V, the power consumption (for example, power) consumed by the corresponding battery BAT1 is P ═ UI of 495 mW.
As shown in fig. 4, the on-state current of the infrared light emitting diode D2 is still 150mA, and the output voltage of the corresponding battery is still 3.3V. The MCU controls the duty ratio of Q1 in the above manner (in the above two examples), so that the voltage stored in the power storage module (L1C1 loop) is 1.3V, that is, the on-voltage of the infrared light emitting diode D2 is 1.3V, and the on-current of the infrared light emitting diode D2 is 150mA, and the power consumption P ═ UI consumed by the corresponding battery BAT1 is 195mW (without considering the loss of components).
Therefore, in the circuit board provided by the embodiment of the invention, the power consumption of the battery consumption is obviously reduced compared with the prior art.
It should be noted that the above embodiment is exemplified by a voltage waveform, and actually, other waveforms, such as an infrared waveform, may also be adopted as long as the waveform periodically exhibits high level and low level switching.
It should be noted that, the above embodiment is described by taking as an example the case where the circuit board is in an operating state (that is, the MCU sends the infrared waveform to the second crystal Q2, and the MCU can send N infrared waveforms to the Q2, where N is an integer greater than or equal to 5, and a value of N is determined by a transmission protocol between the MCU and the Q2). When the MCU does not transmit the infrared waveform to the second crystal Q2, the first transistor Q1 and the second transistor Q2 are turned off, and the circuit board is in an inoperative state.
As can be seen from the above description, in the technical solution of the embodiment of the present invention, the circuit board includes: the device comprises a control module, a power supply module, an electric storage module and a light-emitting module; the power storage model and the power supply model are connected through a first switch module; when the control module controls the first switch module to be in a conducting state, the power supply module supplies power to the power storage module and the light emitting module, so that the light emitting module emits light with first power consumption, and the power storage module starts to store power; when the control module controls the first switch module to be in the off state, the power supply module is in the off state, and the power storage module supplies power to the light emitting module, so that the sending module emits light with second power consumption. In this way, the power consumption of the light emitting module, and thus the power consumption of the power supply module (e.g., a battery) can be reduced.
It should be noted that, the above is only an example of the specific structure of each module in the circuit board provided in the embodiment of the present invention, and in the implementation, the specific structure of each module is not limited to the above structure provided in the embodiment of the present invention, and may be other structures known to those skilled in the art, and is not limited herein.
Optionally, in the circuit board provided in the embodiment of the present invention, all the transistors (all the MOS transistors) may be P-type transistors (P-type MOS transistors) or N-type transistors (N-type MOS transistors) to simplify the manufacturing process, which is not limited herein.
Based on the same inventive concept, an embodiment of the present invention provides an electronic device, please refer to fig. 7, which is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 7, the electronic device 700 includes:
a housing 701;
a circuit board 702 disposed in the housing 701, wherein the circuit board 702 may be the circuit board described in the embodiments of the present invention.
Alternatively, the electronic device may be a remote controller, an infrared laser device, or other infrared devices.
Since the electronic device provided in the embodiment of the present invention is proposed under the same concept as the circuit board provided in the embodiment of the present invention, various variations and specific embodiments of the control method in the foregoing embodiment of fig. 3 are also applicable to the electronic device of the embodiment, and a person skilled in the art can clearly guide the implementation process of the electronic device in the embodiment through the foregoing detailed description of the control method, so that the detailed description is omitted here for the sake of brevity of the description.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A control method is applied to a circuit board, and the circuit board comprises the following steps: the device comprises a control module, a power supply module, an electric storage module and a light-emitting module; the power storage module and the control module are connected through a first switch module; the method comprises the following steps:
when the control module controls the first switch module to be in a conducting state, the power supply module supplies power to the power storage module and the light emitting module, so that the light emitting module emits light with first power consumption, and the power storage module starts to store power;
when the control module controls the first switch module to be in a disconnected state, the power supply module is in a closed state, and the power storage module supplies power to the light-emitting module, so that the light-emitting module emits light with second power consumption.
2. The method of claim 1, wherein the control module is connected to the first switch module, the first switch module being in a conductive state when the control module outputs a high level; when the control module outputs a low level, the first switch module is in an off state.
3. The method of claim 2, wherein the method further comprises:
the control module determines a duty ratio according to the conduction voltage of the light emitting module;
the control module controls the first switching module to be in an on or off state based on the duty ratio.
4. The method of claim 2, wherein the circuit board further comprises: a second switch module; the second switch module is connected with the control module; the method further comprises the following steps:
if the control module sends the infrared waveform to the second switch module, when the control module controls the second switch module to be in a conducting state based on the infrared waveform, controlling the duty ratio of the first switch module to be a first duty ratio; when the control module controls the second switch module to be in an off state based on the infrared waveform, controlling the duty ratio of the first switch module to be a second duty ratio, wherein the second duty ratio is smaller than the first duty ratio;
if the control module does not send the infrared waveform to the second switch module, the first switch module and the second switch module are disconnected, and the circuit board is in an inoperative state.
5. The method of any of claims 1-4, wherein the light module comprises at least one infrared light emitting diode.
6. A circuit board, comprising: the device comprises a control module, a power supply module, an electric storage module and a light-emitting module; the power storage module and the control module are connected through a first switch module;
the control module is used for controlling the first switch module to be in a conducting state or a disconnecting state;
when the first switch module is in a conducting state, the power supply module is used for supplying power to the power storage module and the light-emitting module; the light emitting module emits light with first power consumption, and the power storage module starts power storage;
when the first switch module is in a disconnected state, the power supply module is in a closed state, the power storage module is further used for supplying power to the light emitting module, and the sending module emits light with second power consumption.
7. The circuit board of claim 6, wherein the control module is connected to the first switch module, and the first switch module is in a conducting state when the control module outputs a high level; when the control module outputs a low level, the first switch module is in an off state.
8. The circuit board of claim 7, wherein the control module is configured to determine a duty cycle according to a turn-on voltage of the light emitting module;
the control module is further configured to control the first switching module to be in an on or off state based on the duty cycle.
9. The circuit board of claim 7, wherein the circuit board further comprises: a second switch module; the second switch module is connected between the power storage module and the light emitting module, and is also connected with the control module; wherein the content of the first and second substances,
if the control module is used for sending the infrared waveform to the second switch module, when the control module controls the second switch module to be in a conducting state based on the infrared waveform, the control module is used for controlling the duty ratio of the first switch module to be a first duty ratio; when the control module controls the second switch module to be in an off state based on the infrared waveform, the control module is further configured to control the duty ratio of the first switch module to be a second duty ratio, and the second duty ratio is smaller than the first duty ratio;
if the control module does not send the infrared waveform to the second switch module, the first switch module and the second switch module are disconnected, and the circuit board is in an inoperative state.
10. An electronic device, characterized in that the electronic device comprises
A housing;
the circuit board of any one of claims 6-9, disposed within the housing.
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| CN201811399265.8A CN111210610B (en) | 2018-11-22 | 2018-11-22 | Control method, circuit board and electronic equipment |
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| CN201811399265.8A CN111210610B (en) | 2018-11-22 | 2018-11-22 | Control method, circuit board and electronic equipment |
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Citations (11)
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| CN105979661A (en) * | 2016-06-24 | 2016-09-28 | 浙江生辉照明有限公司 | Time delay illumination circuit and device |
| CN206250762U (en) * | 2016-12-01 | 2017-06-13 | 上海鼎充新能源技术有限公司 | A kind of control circuit of charging electric vehicle rifle electronic lock |
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| EP0513920B1 (en) * | 1991-05-15 | 1995-11-08 | Matsushita Electric Works, Ltd. | Apparatus for operating discharge lamps |
| CN1177233A (en) * | 1996-09-06 | 1998-03-25 | 三菱电机株式会社 | Pulased power supply unit |
| CN102237800A (en) * | 2010-04-28 | 2011-11-09 | 中国科学院电子学研究所 | Forestage energy-accumulating alternative feed type high-voltage transformer suitable for broad pulse load |
| CN101841182A (en) * | 2010-05-17 | 2010-09-22 | 武汉理工大学 | Fuel cell hybrid power source system |
| CN102548104A (en) * | 2010-12-29 | 2012-07-04 | 鸿富锦精密工业（深圳）有限公司 | Light emitting diode (LED) drive circuit |
| CN202435115U (en) * | 2011-12-23 | 2012-09-12 | 北京金风科创风电设备有限公司 | Standby power supply system of wind generating set |
| CN105122578A (en) * | 2013-01-25 | 2015-12-02 | Fdk株式会社 | Balance correction device and electricity storage device |
| CN104023180A (en) * | 2014-04-14 | 2014-09-03 | 华为技术有限公司 | Camera, and illumination control circuit and infrared lamp control method thereof |
| CN105720615A (en) * | 2014-12-02 | 2016-06-29 | 鸿富锦精密工业(武汉)有限公司 | External battery circuit of electronic device |
| CN105979661A (en) * | 2016-06-24 | 2016-09-28 | 浙江生辉照明有限公司 | Time delay illumination circuit and device |
| CN206250762U (en) * | 2016-12-01 | 2017-06-13 | 上海鼎充新能源技术有限公司 | A kind of control circuit of charging electric vehicle rifle electronic lock |
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| CN111210610B (en) | 2021-09-24 |
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