CN202794923U - Single chip microcomputer-based printed board etching machine lighting controller - Google Patents
Single chip microcomputer-based printed board etching machine lighting controller Download PDFInfo
- Publication number
- CN202794923U CN202794923U CN 201220372827 CN201220372827U CN202794923U CN 202794923 U CN202794923 U CN 202794923U CN 201220372827 CN201220372827 CN 201220372827 CN 201220372827 U CN201220372827 U CN 201220372827U CN 202794923 U CN202794923 U CN 202794923U
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- chip microcomputer
- single chip
- circuit
- printed board
- lighting controller
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Abstract
Disclosed in the utility model is a single chip microcomputer-based printed board etching machine lighting controller. The lighting controller comprises a keyboard, an LED display module, a single chip microcomputer, a voltage acquisition circuit, and a load output control and detection circuit. The output terminal of the keyboard is connected to the input terminal of the single chip microcomputer; the output terminal of the single chip microcomputer is connected to the input terminal of the LED display module; and the voltage acquisition circuit and the load output control and detection circuit are in bidirectional connection with the single chip microcomputer. According to the utility model, a problem that how to manage a storage battery and a load effectively can be solved; the service efficiency of the solar cell panel can be improved; the service life of the storage battery can be prolonged; and the occurrence of an accident caused by a circuit problem can be prevented. Moreover, the provided lighting controller with characteristics of reliable design and low cost has the high practical value.
Description
Technical field
The utility model relates to a kind of lamp dimmer, relates in particular to a kind of SCM Based printed board etching machine lamp dimmer, belongs to printed board etching control technical field.
Background technology
The etching of printed board is as one of most important link of production link, and its etched precision is determining the yield of final product.And etching illumination also is the necessary links in the etching operation, and it is the manual shift intensity of illumination that traditional illumination control is still adopted in still existing illumination, and its precision is not high, produces easily maloperation.
The utility model content
The utility model purpose is to provide a kind of SCM Based printed board etching machine lamp dimmer for the defective that prior art exists.
The utility model adopts following technical scheme for achieving the above object: a kind of SCM Based printed board etching machine lamp dimmer comprises keyboard, LED display module; Single-chip microcomputer, voltage collection circuit and load output control and testing circuit, the output terminal of described keyboard is connected to the input end of single-chip microcomputer, the output terminal of described single-chip microcomputer is connected to the input end of LED display module, and described voltage collection circuit is connected control and is connected with testing circuit and single-chip microcomputer are two-way with load.
It is the chip of STC12C5410AD that described single-chip microcomputer adopts model.
Described voltage collection circuit adopts the differential voltage sample circuit.
The beneficial effects of the utility model: how the utility model has solved the problem that accumulator and load are effectively managed, improved the service efficiency of solar panel, prolong the serviceable life of accumulator, prevented from causing because of circuit question the generation of unscheduled event; Have reliable design, characteristics with low cost, have higher practical value.
Description of drawings
Fig. 1 is the system hardware structure block diagram;
Fig. 2 is system load output control and testing circuit.
Embodiment
As shown in Figure 1, a kind of SCM Based printed board etching machine lamp dimmer of the utility model comprises keyboard, LED display module; Single-chip microcomputer, voltage collection circuit and load output control and testing circuit, the output terminal of described keyboard is connected to the input end of single-chip microcomputer, the output terminal of described single-chip microcomputer is connected to the input end of LED display module, and described voltage collection circuit is connected control and is connected with testing circuit and single-chip microcomputer are two-way with load.Described voltage collection circuit adopts the differential voltage sample circuit.
Wherein, it is the STC12 series of STC12C5410AD that single-chip microcomputer adopts model, adopts the risc type CPU core, compatible common 8051 instruction set, sheet contains 10KB Flash program storage, 2KB Flash data-carrier store, 512B RAM data-carrier store, simultaneously inner in addition house dog (WDT); Embedded MAX810 Special reset circuit, 8 path 10 position ADC and 4 passage PWM; Have 4 kinds of priority of programmable 8 grades of interrupt sources, have in-system programming (ISP) and at application programming (IAP), aboundresources in the sheet, integrated level are high, easy to use.
STC12C5410AD implements scheduling to the work of system, realizes the management of setting, accumulator and the load of outside input parameter, the indication of duty etc.Be resource in the abundant use sheet, in the set parameter read-in Flash data-carrier store.
P3.4(T0) connect the F1 key, be used for identification and the parameter setting of the state that arranges; P3.5(T1) connect the F2 key, be used for self check and " adding 1 " function, according to program circuit, realize respectively difference in functionality.
Voltage acquisition is used for the judgement of light power, thereby can be used as the identification signal at daytime, dusk.The battery tension collection is used for the identification of battery-operated voltage.
Utilize the PWM function of microcontroller that accumulator is carried out Charge Management.Accumulator open circuit when if battery charges normal, controller is not damaged switching off load with proof load, if when night or battery do not charge the accumulator open circuit, controller does not have any action owing to self can not get electric power.When charging voltage is higher than protection voltage (15V), automatically shut down the charging to accumulator; After this fall when safeguarding voltage (13.2V) when voltage, accumulator enters floating charge state, when be lower than safeguard voltage (13.2V) after floating charge close, enter the state that all fills.When battery tension was lower than protection voltage (11V), controller autoshutdown load switch was not damaged with the protection accumulator.By PWM charging circuit (intelligent three stages charging), improve system's charge efficiency.Native system support accumulator reversal connection, overcharge, cross and put.
In the circuit theory diagrams as shown in Figure 2: native system has designed two-way load output, the output of every road all has independently to be controlled and detects, has perfect overcurrent, the short-circuit protection measure, designed the two-stage protection: the first order has adopted the constantan wire by R7(0.01 Ω) and amplifier LM358, the overcurrent that the devices such as comparer LM393 form, short-circuit detecting circuit, cooperate A/D conversion and the external interrupt of single-chip microcomputer to respond to realize load overcurrent and short-circuit protection, it is a kind of mode of hardware+software, the P1.7(A/D conversion is sent in the output of LM358) mouthful, as over-current signal identification, when electric current surpasses rated current 20% and keeps 30s when above, confirm as overcurrent; Short-circuit current is adjusted and is that 10A, response time are the millisecond order of magnitude.
The electrical fuse protection has been adopted in the second level; when the electric current of the electrical fuse of flowing through increases suddenly; temperature rises thereupon; its resistance increases greatly; working current reduces greatly, reaches the holding circuit purpose, and the response time is the number of seconds magnitude; overcurrent is cancelled or the rear electrical fuse of short circuit recovery reverts to low-impedance conductor, need not any artificial replacing or maintenance.After system had adopted the two-stage safeguard measure, after the load short circuits experiment that reaches a few hours, the circuit burnout phenomenon did not still appear in controller.Solved can only carry out that in case disposable protection and device burn to circuit with the traditional insurance silk must the artificial problem of changing, compare with the system that needs after the short circuit to reopen after hand-reset or the outage, also have obvious advantage.Simplify the controller maintenance, improved the security of system performance.
Claims (3)
1. SCM Based printed board etching machine lamp dimmer, it is characterized in that, comprise keyboard, LED display module, single-chip microcomputer, voltage collection circuit and load output control and testing circuit, the output terminal of described keyboard is connected to the input end of single-chip microcomputer, the output terminal of described single-chip microcomputer is connected to the input end of LED display module, and described voltage collection circuit is connected control and is connected with testing circuit and single-chip microcomputer are two-way with load.
2. a kind of SCM Based printed board etching machine lamp dimmer according to claim 1 is characterized in that it is the chip of STC12C5410AD that described single-chip microcomputer adopts model.
3. a kind of SCM Based printed board etching machine lamp dimmer according to claim 1 is characterized in that described voltage collection circuit adopts the differential voltage sample circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220372827 CN202794923U (en) | 2012-07-30 | 2012-07-30 | Single chip microcomputer-based printed board etching machine lighting controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220372827 CN202794923U (en) | 2012-07-30 | 2012-07-30 | Single chip microcomputer-based printed board etching machine lighting controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794923U true CN202794923U (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220372827 Expired - Fee Related CN202794923U (en) | 2012-07-30 | 2012-07-30 | Single chip microcomputer-based printed board etching machine lighting controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292136A (en) * | 2015-11-20 | 2016-02-03 | 南车株洲电力机车有限公司 | Storage battery charging control system and device of storage battery electric engineering vehicle |
-
2012
- 2012-07-30 CN CN 201220372827 patent/CN202794923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292136A (en) * | 2015-11-20 | 2016-02-03 | 南车株洲电力机车有限公司 | Storage battery charging control system and device of storage battery electric engineering vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20180730 |