CN208113042U - A kind of SCM Based touch control direct current dimming device - Google Patents

Abstract

The utility model provides a kind of SCM Based touch control direct current dimming device, including sliding touch modules, key touch modules, power conversion module, single-chip minimum system module, drive module, DC pulse width power regulation module, sliding touch modules, key touch modules and drive module are directly connected with single-chip minimum system module, the input terminal of the output end connection DC pulse width power regulation module of drive module, the output end of DC pulse width power regulation module, connect lamps and lanterns after be connected to power conversion module.The utility model can make user by sliding light modulation or touch light modulation, improve user experience；There is no mechanical contact will not be because dimming poor contact of contacts caused by the reasons such as humidity, dust, aging；Touching device is mounted on shell in the following, not needing to carry out aperture to shell.

Description

A kind of SCM Based touch control direct current dimming device

Technical field

The utility model relates to a kind of dimming devices, in particular to a kind of to touch dimming device based on single-chip microcontroller.

Background technique

With the increasingly raising of living standard.Requirement of the people for lamps and lanterns is also higher and higher；Dimming device is lamps and lanterns Core control carries out big minor adjustment, traditional light adjusting circuit to light with the difference of ambient light and using the different of scene It is mechanical mode either touch-switch, either mechanical or touch-switch has mechanical contact, and mechanical contact uses Restricted lifetime be easy to cause poor contact, and needs to destroy the shell of lamps and lanterns during installation, and some such as glass are not easy In the shell of aperture material, it is extremely difficult that the inside needs to install a dimming device.How the light modulation dress of lamps and lanterns is efficiently solved It sets and does not need mechanical contact, being dimmed by way of touch is current those skilled in the art's urgent problem.

Summary of the invention

It requires the lamps and lanterns for direct current to be based on single-chip microcontroller the purpose of this utility model is to provide a kind of pair of voltage and touches tune Electro-optical device does not need mechanical contact, can be dimmed by way of touch.

To achieve the above object, the embodiments of the present invention are：A kind of SCM Based touch control direct current tune Electro-optical device, including sliding touch modules, key touch modules, power conversion module, single-chip minimum system module, driving mould Block, DC pulse width power regulation module, sliding touch modules, key touch modules and drive module directly with single-chip microcontroller minimum system Module of uniting is connected, the input terminal of the output end connection DC pulse width power regulation module of drive module, DC pulse width power adjustment The output end of module, connect lamps and lanterns after be connected to power conversion module.

As more specifically embodiment, the sliding touch modules include five touch key-press, five touch key-press It uniformly places on the same line.

As more specifically embodiment, the key touch modules include two touch key-press.

As more specifically embodiment, the power conversion module uses isolation type switching power supply, including UC3826 It is chip and peripheral cell, respectively sliding touch modules, key touch modules, single-chip minimum system module, drive module, straight It flows pulsewidth power regulation module and lamps and lanterns provides suitable voltage and current.

As more specifically embodiment, the single-chip minimum system module includes singlechip chip and peripheral cell Composition, the singlechip chip are STM8S103F.

As more specifically embodiment, the drive module includes that three triodes and peripheral cell form, and one Triode and peripheral cell form basic amplifier circuit, other two triode constitutes a totem pillar export structure.

As more specifically embodiment, the DC pulse width power regulation module includes metal-oxide half Conductor field effect transistor（MOSFET）.

As more specifically embodiment, the lamps and lanterns require voltage to be direct current.

The utility model can make user by sliding light modulation or touch light modulation, improve user experience；Without mechanical touching Point will not be because dimming poor contact of contacts caused by the reasons such as humidity, dust, aging；Touching device is mounted on shell in the following, being not required to Aperture is carried out to shell.

Detailed description of the invention

Fig. 1 is the structural block diagram of the utility model.

Fig. 2 is that touch modules circuit diagram is slided in Fig. 1.

Fig. 3 is key touch modules circuit diagram in Fig. 1.

Fig. 4 is power conversion module circuit diagram in Fig. 1.

Fig. 5 is single-chip minimum system module circuit schematic in Fig. 1.

Fig. 6 is drive module circuit diagram in Fig. 1.

Fig. 7 is DC pulse width power regulation module circuit diagram in Fig. 1.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and examples.

As shown in Figure 1, a kind of be based on single-chip microcontroller touch control direct current dimming device, including sliding touch modules, key touching Module, power conversion module, single-chip minimum system module, drive module, DC pulse width power regulation module and lamps and lanterns are touched, it is sliding Dynamic touch modules, key touch modules and drive module are directly connected with single-chip minimum system module, the output of drive module End connection DC pulse width power regulation module input terminal, the output end of DC pulse width power regulation module, connect lamps and lanterns after connect It is connected to power conversion module.

As shown in Fig. 2, sliding touch modules include five touch key-press, five touch key-press are uniformly placed on same straight line On, LED backlight is added behind key, the point that each key finally stops is 20%, 40%, 60%, 80%, the 100% of lamp brightness, By sliding touch modules can quick coarse adjustment lamps and lanterns brightness.

As shown in figure 3, key touch modules include two touch key-press KA, KB, a brightness increases, and a brightness subtracts Small, brightness touches reduction key lamp brightness again and is reduced to 0 when being 20%, and 20%-100% brightness value is divided into 80 equal parts, every to touch one Secondary increase and decrease 1%.

As shown in figure 4, power conversion module uses isolation type switching power supply, including UC3842 chip and peripheral cell, UC3842 chip is shared 8 pins, is a kind of current-control type using the fixed controllable modulation system of working frequency pulse width Pulse width modulating chip, Single-end output can directly drive ambipolar power tube or field-effect tube, and peripheral circuit is simple, the chip It is integrated with oscillator, error amplifier, current sense comparator, totem output electric current, input and benchmark under-voltage locking electricity Respectively sliding touch modules, key touch modules, single-chip microcontroller minimum is added after peripheral cell in road and PWM latch circuit System module, drive module, DC pulse width power regulation module and lamps and lanterns provide suitable voltage and current.

As shown in figure 5, single-chip minimum system module includes singlechip chip U1（STM8S103F）With peripheral cell group At singlechip chip U1（STM8S103F）Support touch input, operating voltage 2.95-5.5V, outside passes through a resistance It is connected to both ends of power with a capacitor series connection, the resetting pin that the tie point of resistance and capacitor is connected to single-chip microcontroller is formed electrification reset Circuit, singlechip chip U1（STM8S103F）Configuration by program uses internal crystal oscillator, and single-chip minimum system module is whole Core control action is played in a device.

As shown in fig. 6, the main function of drive module is to improve the driving capability of single-chip processor i/o mouth, single-chip microcontroller minimum The pwm signal of system module output is handled, it is made to meet the input requirements of DC pulse width power regulation module, including three Triode Q2, Q3, Q4, latter two triode Q3, Q4 constitute a totem pillar export structure, triode Q2（NPN type crystal Pipe）Collector be connected to power supply, the emitter of this pipe connects the collector of following PNP pipe while exporting, the hair of down tube Emitter grounding.The base stage of two triodes Q3, Q4 are in parallel and meet the output of prime triode, upper and lower two efferent ducts, two Guan Lian Meeting place is output end；When upper tube conducting down tube cut-off output high level, upper tube cut-off output low level is connected in down tube.

As shown in fig. 7, DC pulse width power regulation module includes a Metal-Oxide Semiconductor field effect transistor （MOSFET）.

The above-mentioned working principle based on single-chip microcontroller touch control direct current dimming device is：Item or touch are touched by sliding Key position after single-chip minimum system module detects touch signal, is converted to corresponding PWM wave signal, pwm control signal The turn-on time for changing DC pulse width power regulation module by drive module, when brightness need to be increased, DC pulse width power adjustment The turn-on time of module increases, and when that need to reduce brightness, the turn-on time of DC pulse width power regulation module is reduced, to make it Concatenated direct current lamps and lanterns obtain different brightness, to realize light modulation purpose.

Claims (8)

1. a kind of SCM Based touch control direct current dimming device, which is characterized in that including sliding touch modules, key touching Module, power conversion module, single-chip minimum system module, drive module, DC pulse width power regulation module are touched, sliding touches Module, key touch modules and drive module are directly connected with single-chip minimum system module, the output end connection of drive module The input terminal of DC pulse width power regulation module, the output end of DC pulse width power regulation module, connect lamps and lanterns after be connected to electricity Source conversion module.

2. SCM Based touch control direct current dimming device according to claim 1, which is characterized in that the sliding Touch modules include five touch key-press, and five touch key-press are uniformly placed on the same line.

3. SCM Based touch control direct current dimming device according to claim 1, which is characterized in that the key Touch modules include two touch key-press.

4. SCM Based touch control direct current dimming device according to claim 1, which is characterized in that the power supply Conversion module uses isolation type switching power supply, including UC3826 chip and peripheral cell.

5. SCM Based touch control direct current dimming device according to claim 1, which is characterized in that the monolithic Machine minimum systematic module includes singlechip chip and peripheral cell composition, and the singlechip chip is STM8S103F.

6. SCM Based touch control direct current dimming device according to claim 1, which is characterized in that the driving Module includes that three triodes and peripheral cell form, and a triode and peripheral cell form basic amplifier circuit, and in addition two Pipe constitutes a totem pillar export structure.

7. SCM Based touch control direct current dimming device according to claim 1, which is characterized in that the direct current Pulsewidth power regulation module includes a Metal-Oxide Semiconductor field effect transistor.

8. SCM Based touch control direct current dimming device according to claim 1, which is characterized in that the lamps and lanterns Voltage is required to be direct current.