CN113747631A - Light touch switch lawn lamp control chip - Google Patents
Light touch switch lawn lamp control chip Download PDFInfo
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- CN113747631A CN113747631A CN202111161582.8A CN202111161582A CN113747631A CN 113747631 A CN113747631 A CN 113747631A CN 202111161582 A CN202111161582 A CN 202111161582A CN 113747631 A CN113747631 A CN 113747631A
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000010586 diagram Methods 0.000 description 12
- 238000005286 illumination Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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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- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/31—Phase-control circuits
- H05B45/315—Reverse phase-control circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A light touch switch lawn lamp control chip comprises a charging control and light control unlocking module, a light touch switch, a light touch key module, an electrifying locking circuit module and a driving circuit module; the peripheral circuit comprises a load, a battery and a solar panel; the TOUCH key module receives a signal input by the port TOUCH and outputs a first unlocking signal to the power-on locking circuit module and the driving circuit module; the charging control and light-operated unlocking module outputs a signal Unlock to the power-on locking circuit module according to the voltage difference between the port SOL and the port BAT, and the power-on locking circuit module outputs a second unlocking signal according to the first unlocking signal and the signal Unlock; the driving module controls the on and off of the load LED according to the first unlocking signal and/or the second unlocking signal. Therefore, the invention can turn on the load LED lamp when needed and avoid the problem that the LED is suddenly lightened because of external interference in transportation.
Description
Technical Field
The invention belongs to the technical field of lighting circuits, and relates to a light-touch switch lawn lamp control chip.
Background
With the development of economy, renewable resources solar energy which is rich in resources, free to use and free to transport and free of pollution to the environment is more and more favored by people, particularly outdoor illumination such as parks, squares and outdoor advertising lamps, solar energy is used for supplementing energy sources and control modes more and more, so that the current sustainable energy sources can be fully utilized, meanwhile, the consumption of traditional energy sources is greatly saved, and the emission of pollution is reduced.
In the daytime, the solar panel charges the battery by means of solar energy, and after the charging is stopped at night, the battery starts to discharge, so that the illumination of the LED is maintained. In the actual use process, after the solar panel receives illumination, when the voltage of the solar panel is detected to be larger than the internal set voltage, the solar panel is defaulted to enter a light control state, and then the output of the LED is turned off, and only charging application is carried out; when the solar panel does not receive illumination any more, the power supply starts to supply power and the LED output is turned on along with the fact that the voltage of the solar panel is smaller than the internal set voltage.
When the solar LED lighting application is actually used, due to the fact that transportation and long-time storage characteristics are considered, customers tend to prefer to use products which are not powered on, and therefore power consumption can be saved to the maximum extent. However, this also requires a corresponding unlocking mode, in particular in switchless applications.
In the prior art, two unlocking modes are generally adopted, wherein one mode is that when a switch is applied, a switch key is connected in series at an output port (BAT port) of a battery for unlocking; in another non-switch application, a light control mode is often adopted, that is, after a CDS pin is detected to be greater than an internal set voltage, the solar application chip is unlocked.
However, both of the above applications have a problem that when the LED is turned off at night and a light source such as a car light or a flashlight is received, the LED is erroneously triggered to be turned on; in addition, when the two unlocking modes are applied, the charging loop has no way to work. Therefore, there is also a need for a light touch switch lawn lamp control chip that can turn on the load LED lamp when needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a light-touch switch lawn lamp control chip, which has the following technical scheme:
a light touch switch lawn lamp control chip comprises an internal circuit and a peripheral circuit; the internal circuit comprises a charging control and light-operated unlocking module, a light-touch switch, a light-touch key module, an electrifying locking circuit module and a driving circuit module; the peripheral circuit comprises a load, a battery and a solar panel; the charging control and light-operated unlocking module is connected between a port SOL and a port BAT, and when the battery discharges the load, the charging control and light-operated unlocking module outputs a signal Unlock to Unlock the power-on locking circuit module; the battery is connected between the port BAT and a ground terminal; the tact switch is connected between the port TOUCH and the grounding end; the solar panel is connected between the port SOL and a grounding end; the TOUCH key module receives a signal input by the port TOUCH and outputs a first unlocking signal to the power-on locking circuit module and the driving circuit module; the charging control and light-operated unlocking module outputs a signal Unlock to the power-on locking circuit module according to the voltage difference between the port SOL and the port BAT, and the power-on locking circuit module outputs a second unlocking signal according to the first unlocking signal and the signal Unlock; and the driving module controls the on-off of the load according to the first unlocking signal and/or the second unlocking signal.
Furthermore, the charge control and light-operated unlocking module comprises a comparator and a P transistor, wherein the negative input end of the comparator is connected with the port SOL, the positive input end of the comparator is connected with the port BAT, the output end of the comparator is connected with the grid electrode of the P transistor, the source electrode of the grid electrode of the P transistor is connected with the port SOL, and the drain electrode of the P transistor is connected with the port BAT; when SOL is greater than BAT, the output end of the comparator outputs a signal Unlock with low level, the P transistor is conducted, and the solar panel charges the battery; when SOL is less than BAT, the level of a signal Unlock is high, the P transistor is turned off, the solar panel stops charging the battery, and the battery discharges the load.
Further, the light touch Key module comprises a first trigger, a second trigger and a third trigger which are connected in sequence, wherein Reset ends Reset of the first trigger, the second trigger and the third trigger are connected together and used for receiving trigger information Key sent by the light touch switch; the CLK end of the first trigger is connected with a clock pulse signal; when the duration of the trigger information Key reaches a certain threshold, the second trigger is generated to send a trigger signal Key0 to the power-on locking circuit module, and an on-off control signal Key1 is sent to the driving circuit module through the third trigger according to the sending frequency sequence of the trigger signal Key 0; the first unlocking signal comprises a trigger signal Key0 and a start and stop control signal Key 1.
Further, the power-on locking circuit module comprises an inverter, an and logic gate and a fourth flip-flop; the inverter outputs a reverse signal of a signal Unlock, the AND logic gate receives the trigger information Key sent by the light touch Key module and the signal Unlock output by the charging control and light control unlocking module to output a starting signal, a Reset end Reset of the fourth trigger receives the starting signal, a CLK end of the fourth trigger receives the trigger signal Key0, and a second unlocking signal is output.
According to the technical scheme, the light-touch switch lawn lamp control chip disclosed by the invention can work in a charging loop when applied to a light-touch switch lawn lamp system, and after the light-touch switch lawn lamp system is electrified and locked, the chip can ensure extremely low power consumption, so that long-time storage can be ensured; in addition, the LED can be turned on at any time through the unlocking function and the key function when in use, and the problem that the LED is suddenly lightened due to external interference in transportation is solved.
Drawings
FIG. 1 is a functional block diagram of a light-touch switch lawn lamp control chip according to an embodiment of the present invention
FIG. 2 is a schematic circuit diagram of a charging control and light-operated unlocking function module according to an embodiment of the present invention
FIG. 3 is a schematic circuit diagram of a touch key function module according to an embodiment of the present invention
FIG. 4 is a schematic waveform diagram of a touch key function module according to an embodiment of the present invention
FIG. 5 is a schematic circuit diagram of a power-on locking module according to an embodiment of the present invention
FIG. 6 is a schematic waveform diagram of a power-on locking and unlocking module according to an embodiment of the present invention
Detailed Description
The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 6.
Referring to fig. 1, fig. 1 is a functional block diagram of a lawn lamp control chip of a tact switch according to an embodiment of the present invention. As shown in fig. 1, the control chip includes an internal circuit and a peripheral circuit; the internal circuit comprises a charging control and light-operated unlocking module, a light-touch switch, a light-touch key module, an electrifying locking circuit module and a driving circuit module; the peripheral circuit comprises a load, a battery and a solar panel; the charging control and light-operated unlocking module is connected between a port SOL and a port BAT, and when the battery discharges the load, the charging control and light-operated unlocking module outputs a signal Unlock to Unlock the power-on locking circuit module; the battery is connected between the port BAT and a ground terminal; the tact switch is connected between the port TOUCH and the grounding end; the solar panel is connected between the port SOL and a ground terminal.
The TOUCH key module receives a signal input by the port TOUCH and outputs a first unlocking signal to the power-on locking circuit module and the driving circuit module; the charging control and light-operated unlocking module outputs a signal Unlock to the power-on locking circuit module according to the voltage difference between the port SOL and the port BAT, and the power-on locking circuit module outputs a second unlocking signal according to the first unlocking signal and the signal Unlock; and the driving module controls the on-off of the load according to the first unlocking signal and/or the second unlocking signal.
Referring to fig. 2, fig. 2 is a schematic circuit diagram of a charging control and light-operated unlocking functional module according to an embodiment of the present invention. As shown in fig. 2, the charge control and light control unlocking module includes a comparator and a P transistor, a negative input terminal of the comparator is connected to a port SOL, a positive input terminal of the comparator is connected to a port BAT, an output terminal of the comparator is connected to a gate of the P transistor, a source of the gate of the P transistor is connected to the port SOL, and a drain of the P transistor is connected to the port BAT; by detecting the SOL and BAT voltages, it can be determined whether the solar panel is in a charging or discharging state with respect to the battery.
The charge control and light-operated unlocking module comprises a comparator and a P transistor, wherein the negative input end of the comparator is connected with a port SOL, the positive input end of the comparator is connected with a port BAT, the output end of the comparator is connected with the grid electrode of the P transistor, the grid electrode source electrode of the P transistor is connected with the port SOL, and the drain electrode of the P transistor is connected with the port BAT; when SOL is greater than BAT, the output end of the comparator outputs a signal Unlock with low level, the P transistor is conducted, and the solar panel charges the battery; when SOL is less than BAT, the level of a signal Unlock is high, the P transistor is turned off, the solar panel stops charging the battery, and the battery discharges the load.
Referring to fig. 3, fig. 3 is a schematic circuit diagram of a touch key function module according to an embodiment of the present invention. As shown in fig. 3, the light touch key function module includes a first trigger, a second trigger and a third trigger, which are connected in sequence; reset ends Reset of the first trigger, the second trigger and the third trigger are connected together and used for receiving trigger information Key sent by the tact switch; the CLK terminal of the first trigger is connected with a clock pulse signal.
When the duration of the trigger information Key reaches a certain threshold, the second trigger is generated to send a trigger signal Key0 to the power-on locking circuit module, and an on-off control signal Key1 is sent to the driving circuit module through the third trigger according to the sending frequency sequence of the trigger signal Key 0; the first unlocking signal comprises a trigger signal Key0 and a start and stop control signal Key 1.
When the external Key is not pressed, the control chip has a function of pulling up, a fixed oscillation signal is generated inside the control chip, and the D trigger is used for detecting the low-level starting time of the trigger information Key and judging whether the duration of the trigger information Key reaches a certain threshold value or not, so that the Key anti-shaking effect is achieved, and the problem of false triggering caused by interference signals is avoided.
That is to say, if the duration of the trigger information Key is short and does not meet the set internal time threshold, the trigger information Key is triggered by mistake, which is an invalid pressing condition, and at this time, the second trigger does not generate the trigger signal Key 0; otherwise, the second trigger generates a trigger signal Key0, and the Key function is switched by default.
Referring to fig. 4 in conjunction with fig. 3, fig. 4 is a schematic waveform diagram of the touch key function module according to the embodiment of the present invention. As shown in fig. 4, the waveform of the trigger information Key, the waveform of the clock pulse CLK, the waveform of the trigger signal Key0, and the waveform of the on-off control signal Key1 are included in sequence from top to bottom.
When the Key function is not started (OFF state), the waveform of the trigger information Key is at high level, and when the Key function is started or triggered by mistake (ON state), the waveform of the trigger information Key is at low level. This time division is in two states: when the low level time of the Key is less than the period of the clock pulse signal CLK, the Key does not operate, and only when the low level time of the Key exceeds the period of the clock pulse signal CLK, the Key operates.
As can be seen from fig. 3, the trigger signal Key has three times of low levels, the duration of the first low level is short, and almost simultaneously, one period of the clock pulse CLK waveform is the same, if the threshold is greater than or equal to 2 pulse signals, the first low level is faulty operation or jitter, and the second low level and the third low level are valid Key touch signals, that is, the trigger signal Key0 and the on-off control signal Key1 can be output.
Referring to fig. 5, fig. 5 is a circuit diagram of a power-on locking module according to an embodiment of the invention. As shown in fig. 5, the power-on locking circuit module includes an inverter, an and logic gate, and a fourth flip-flop; the inverter outputs a reverse signal of a signal Unlock, the AND logic gate receives the trigger information Key sent by the light touch Key module and the signal Unlock output by the charging control and light control unlocking module to output a starting signal, a Reset end Reset of the fourth trigger receives the starting signal, a CLK end of the fourth trigger receives the trigger signal Key0, and a second unlocking signal is output.
Specifically, when detecting that the Key0 is powered on, the initial signal passes through a latch formed by the fourth D flip-flop, and the output signal OFF is latched to a high level, and when encountering the Key signal or the light-operated Unlock signal again, the OFF signal can be unlocked, so that power-on locking is realized, and the functions of Key pressing and light-operated unlocking are realized.
Referring to fig. 6, fig. 6 is a waveform diagram of a power-on locking and unlocking module according to an embodiment of the present invention. As shown in fig. 6, after the power is turned on, the output OFF state is always high, and only when Unlock is performed or Key is operated again, the unlocking is performed.
In summary, by adopting the scheme of the invention, the lawn lamp control application can be realized by externally connecting the NMOS tube, the LED lamp and the power supply.
The above description is only for the preferred embodiment of the present invention, and the embodiment is not intended to limit the scope of the present invention, so that all the equivalent structural changes made by using the contents of the description and the drawings of the present invention should be included in the scope of the present invention.
Claims (4)
1. A light touch switch lawn lamp control chip is characterized by comprising an internal circuit and a peripheral circuit; the internal circuit comprises a charging control and light-operated unlocking module, a light-touch switch, a light-touch key module, an electrifying locking circuit module and a driving circuit module; the peripheral circuit comprises a load, a battery and a solar panel; the charging control and light-operated unlocking module is connected between a port SOL and a port BAT, and when the battery discharges the load, the charging control and light-operated unlocking module outputs a signal Unlock to Unlock the power-on locking circuit module; the battery is connected between the port BAT and a ground terminal; the tact switch is connected between the port TOUCH and the grounding end; the solar panel is connected between the port SOL and a grounding end;
the TOUCH key module receives a signal input by the port TOUCH and outputs a first unlocking signal to the power-on locking circuit module and the driving circuit module; the charging control and light-operated unlocking module outputs a signal Unlock to the power-on locking circuit module according to the voltage difference between the port SOL and the port BAT, and the power-on locking circuit module outputs a second unlocking signal according to the first unlocking signal and the signal Unlock; and the driving module controls the on-off of the load according to the first unlocking signal and/or the second unlocking signal.
2. The light-touch switch lawn lamp control chip of claim 1, wherein the charge control and light-operated unlocking module comprises a comparator and a P transistor, a negative input end of the comparator is connected with the port SOL, a positive input end of the comparator is connected with the port BAT, an output end of the comparator is connected with a grid electrode of the P transistor, a grid electrode source electrode of the P transistor is connected with the port SOL, and a drain electrode of the P transistor is connected with the port BAT; when SOL is greater than BAT, the output end of the comparator outputs a signal Unlock with low level, the P transistor is conducted, and the solar panel charges the battery; when SOL is less than BAT, the level of a signal Unlock is high, the P transistor is turned off, the solar panel stops charging the battery, and the battery discharges the load.
3. The light touch switch lawn lamp control chip of claim 1, wherein the light touch button module comprises a first trigger, a second trigger and a third trigger which are connected in sequence, Reset ends Reset of the first trigger, the second trigger and the third trigger are connected together and used for receiving trigger information Key sent by the light touch switch; the CLK end of the first trigger is connected with a clock pulse signal; when the duration of the trigger information Key reaches a certain threshold, the second trigger generates a trigger signal Key0 to be sent to the power-on locking circuit module, and sends an on-off control signal Key1 to the driving circuit module through the third trigger according to the sending frequency sequence of the trigger signal Key 0; the first unlocking signal comprises a trigger signal Key0 and a start and stop control signal Key 1.
4. The tact switch lawn lamp control chip of claim 1, wherein said power-on lock circuit module comprises an inverter, an and logic gate and a fourth flip-flop; the inverter outputs a reverse signal of a signal Unlock, the AND logic gate receives the trigger information Key sent by the light touch Key module and the signal Unlock output by the charging control and light control unlocking module to output a starting signal, a Reset end Reset of the fourth trigger receives the starting signal, a CLK end of the fourth trigger receives the trigger signal Key0, and a second unlocking signal is output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111161582.8A CN113747631A (en) | 2021-09-30 | 2021-09-30 | Light touch switch lawn lamp control chip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111161582.8A CN113747631A (en) | 2021-09-30 | 2021-09-30 | Light touch switch lawn lamp control chip |
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| CN113747631A true CN113747631A (en) | 2021-12-03 |
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| CN202111161582.8A Pending CN113747631A (en) | 2021-09-30 | 2021-09-30 | Light touch switch lawn lamp control chip |
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| CN110446301A (en) * | 2019-08-09 | 2019-11-12 | 上海裕芯电子科技有限公司 | A kind of light-operated boosting LED function circuit of solar energy |
| CN218103579U (en) * | 2021-09-30 | 2022-12-20 | 上海裕芯电子科技有限公司 | Light touch switch lawn lamp control chip |
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2021
- 2021-09-30 CN CN202111161582.8A patent/CN113747631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150162984A1 (en) * | 2012-08-13 | 2015-06-11 | Kuang-Chi Innovative Technology Ltd. | Optical signal processing apparatus and decoding method for optical signal reception control device |
| CN205987489U (en) * | 2016-07-05 | 2017-02-22 | 深圳市励创微电子有限公司 | Multiple ends on -off control chip and switching device |
| US20190222212A1 (en) * | 2017-03-06 | 2019-07-18 | Shenzhen Mojay Semiconductor Limited | Proximity magnetic induction switch control chip and its control method |
| CN208113028U (en) * | 2018-04-17 | 2018-11-16 | 上海裕芯电子科技有限公司 | A kind of solar LED flame lamp driving chip and its application circuit |
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