CN102435957A - Program-controlled LED aging test apparatus - Google Patents

Program-controlled LED aging test apparatus Download PDF

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CN102435957A
CN102435957A CN201110322096XA CN201110322096A CN102435957A CN 102435957 A CN102435957 A CN 102435957A CN 201110322096X A CN201110322096X A CN 201110322096XA CN 201110322096 A CN201110322096 A CN 201110322096A CN 102435957 A CN102435957 A CN 102435957A
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pin
chip
module
power supply
output
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CN102435957B (en
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王健
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HANGZHOU YUHANG ELECTRICAL APPLIANCE CO Ltd
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HANGZHOU YUHANG ELECTRICAL APPLIANCE CO Ltd
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Abstract

The invention relates to a program-controlled LED aging test apparatus. According to the apparatus, a device working power supply module is respectively connected with a microprocessor module, a current/voltage regulator module, a D/A conversion module, a temperature detection and alarm module, a keyboard module, an LED display module, a 485 communication module, and a 232 communication module. The current/voltage regulator module, a D/A conversion module, a temperature detection and alarm module, a keyboard module, an LED display module, a 485 communication module, and a 232 communication module are respectively connected with the microprocessor module. A power output power supply module is connected with the current/voltage regulator module. And the D/A conversion module is connected with the current/voltage regulator module. According to the invention, the current stabilization output or pulse outputs with different frequencies is/are realized; and a duty ratio can be adjusted; besides, the apparatus has timing, power down protection and alarming functions and the like.

Description

Program control LED ageing test apparatus
Technical field
The invention belongs to the electric detective technology field, relate to a kind of program control LED ageing test apparatus, be mainly used in the aging test of LED device.
Technical background
The LED industry development is rapid; The LED device is also quite ripe, but the systematic Study of component failure mechanism is still than lacking, in links such as design, manufacturing, application; The integrity problem of LED is the difficult problem of puzzlement industry always, and the expansion that directly influences application is with deep.In application scenarios such as illumination, display devices; LED matrix often is made up of plurality of LEDs; Its electric performance stablity property, photochromic performance degradation consistance and serviceable life require all very high; And after working long hours, characteristics such as each LEDs colour temperature, colour rendering, excitation, spectral distribution, light-emitting uniformity and illumination all will change with service time; In addition, the LED that the installation initial stage is in proper working order lights and half-light can occur after a period of time, flashes, fault, is interrupted phenomenons such as bright, brings grievous injury to product.Therefore; For in time, reject defective product quickly and efficiently, avoid the various faults of LED in using, except that guaranteeing good welds technology; Be necessary to carry out early screening, life test analysis through aging test, this is the important assurance of LED product reliability.The LED ageing test apparatus is one of important component part of LED aging test, life test analytic system; Can be according to the pulse output of program control realization current stabilization output of different aging test schemes or different frequency; EDM Generator of Adjustable Duty Ratio; And having functions such as timing, power down protection, warning, aging data can upload to PC through serial ports and preserve, analyze, handle and generate corresponding report etc.Through changing different frock clamps and disposing corresponding ageing parameter, this test unit is applicable to dissimilar LED devices.
Summary of the invention
The objective of the invention is to LED device aging demand and prior art situation; Provide that a kind of precision is high, program-controlled, price is low and have the senile experiment device of intelligent functions such as self-correcting, fault alarm; All kinds of analytical statements such as production data, product quality statistics can be provided; Both can be used for LED device early screening, can be used for life test and fail-safe analysis etc. again.
The present invention includes three parts: PC, program control aging power supply and aging frock clamp.
Wherein, program control aging power supply comprises: microprocessor module, device working power module, power output power supply module, current/voltage adjusting module, D/A modular converter, temperature detection and alarm module, Keysheet module, LED display module, 485 communication modules and 232 communication modules.
Said microprocessor module comprises that central processing unit LPC1765FBD100 chip, storage AT24C16 chip, reference power supply REF3125AIDBZ chip, electrification reset SP708SEN chip, Darlington transistor ULN2003L chip, phase inverter SN74HC14D chip, crystal oscillator, toggle switch, JTAG emulation interface, first keyboard of NXP semiconductors company show DISPLAY interface and fan FAN interface etc.Wherein, (P0 [20]/DTR1/SCL1) is connected to 6 pin (SCL) of storage AT24C16 chip to 58 pin of LPC1765FBD100 chip; For it provides work clock; (P0 [19]/DSR1/SDA1) is connected to 5 pin (SDA) of AT24C16 chip to 59 pin of LPC1765FBD100 chip, realizes serial input, the output of data.12 pin (VREFP) of LPC1765FBD100 chip are connected with 2 pin (OUT) of reference power supply REF3125AIDBZ chip; 15 pin (VREFN) of LPC1765FBD100 chip are connected with 3 pin (GND) of REF3125AIDBZ chip, obtain the required reference power source of built-in AD conversion.17 pin (SYSRST) of LPC1765FBD100 chip be connected to electrification reset SP708SEN chip 7 pin (/RESET), obtain the electrification reset level.The signal of 73 pin of LPC1765FBD100 chip (P2 [2]/PWM1 [3]/CTS1/TRACEDATA [3]) outputs to input end 1 pin of phase inverter SN74HC14D chip; It is reverse after output terminal 2 pin of SN74HC14D chip output to Darlington transistor ULN2003L chip 5 pin (IN5), 6 pin (IN6) and 7 pin (IN7); Output to 3 pin of fan FAN interface through 10 pin (OUT7), 11 pin (OUT6), 12 pin (OUT5) of ULN2003L chip, the drive control signal of fan is provided.The signal of 70 pin of LPC1765FBD100 chip (P2 [3]/PWM1 [4]/DCD1/TRACEDATA [2]) outputs to 3 pin of SN74HC14D chip; It is reverse after output terminal 4 pin of SN74HC14D chip output to 4 pin (IN4) of ULN2003L chip; The signal of 69 pin of LPC1765FBD100 chip (P2 [4]/PWM1 [5]/DSR1/TRACEDATA [1]) outputs to 5 pin of SN74HC14D chip; It is reverse after output terminal 6 pin of SN74HC14D chip output to 3 pin (IN3) of ULN2003L chip; The signal of 68 pin of LPC1765FBD100 chip (P2 [5]/PWM1 [6]/DTR1/TRACEDATA [0]) outputs to 9 pin of SN74HC14D chip; It is reverse after output terminal 8 pin of SN74HC14D chip output to 2 pin (IN2) of ULN2003L chip; The signal of 67 pin of LPC1765FBD100 chip (P2 [6]/PCAP1 [0]/RI1/TRACECLK]) outputs to 11 pin of SN74HC14D chip; It is reverse after output terminal 10 pin of SN74HC14D chip output to 1 pin (IN1) of ULN2003L chip; 13 pin (OUT4) of ULN2003L chip U13,14 pin (OUT3), 15 pin (OUT2), 16 pin (OUT1) output to 5 pin of 5 pin of the 4th relay R L4 in the power output power supply module, 5 pin of the 3rd relay R L3, second relay R L2,5 pin of first relay R L1, the switching of pilot relay respectively.(P2 [11]/EINT1/I2STX_CLK) outputs to 1 pin of first triode Q6 in the current/voltage adjusting module, the break-make of the triode Q6 of control to 52 pin of LPC1765FBD100 chip.Crystal oscillator Y2 is through 22 pin (XTAL1) and 23 pin (XTAL2) of LPC1765FBD100 chip, for system provides work clock.((((P1 [8]/ENET_CRS) provides system's required address coding to 95 pin of toggle switch SW1 through the LPC1765FBD100 chip for P1 [4]/ENET_TX_EN), 92 pin for P1 [1]/ENET_TXD1), 93 pin for P1 [0]/ENET_TXD0), 94 pin.1 pin (TDO/SWO) of LPC1765FBD100 chip, 2 pin (TDI), 3 pin (TMS/SWDIO), 4 pin (TRST), 5 pin (TCK/SWDCLK), 100 pin (RTCK), 17 pin (SYSRST) output to JTAG emulation interface JP1, to realize the artificial debugging of system.48 pin of LPC1765FBD100 chip (P0 [10]/TXD2/SDA2/MAT3 [0]), 49 pin (P0 [11]/RXD2/SCL2/MAT3 [1]), 81 pin (P0 [4]/I2SRX_CLK/RD2/CAP2 [0]), 80 pin (P0 [5]/I2SRX_WS/TD2/CAP2 [1]), 79 pin (P0 [6]/I2SRX_SDA/SSEL1/MAT2 [0]), 78 pin (P0 [7]/I2STX_CLK/SCK1/MAT2 [1]), 77 pin (P0 [8]/I2STX_WS/MISO/MAT2 [2]), 76 pin (P0 [9]/I2STX_SDA/MOSI/MAT2 [3]) show DISPLAY interface J1 through show second keyboard that DISPLAY interface J7 is connected in the Keysheet module to first keyboard, with Keysheet module, LED display module interactive information.27 pin of LPC1765FBD100 chip (P3 [25]/MAT0 [0]/PWM1 [2]) receive the temperature information in temperature detection and the alarm module; (P4 [28]/RX_MCLK/MAT2 [0]/TXD3) outputs to temperature detection and alarm module to 82 pin of LPC1765FBD100 chip, the control buzzer warning.24 pin of LPC1765FBD100 chip (4 pin of the DA converter AD5623 chip of P0 [28]/SCL0/USB_SCL) in the D/A modular converter (/LDAC) start DA to change; (P0 [29]/USB_D+) is through 5 pin (/LCR) the control DAC register zero clearing of AD5623 chip U14 for 29 pin of LPC1765FBD100 chip; (P0 [30]/USB_D) is to 6 pin of AD5623 chip U14 (/SYNC) output synchronizing signal for 30 pin of LPC1765FBD100 chip; (P0 [15]/TXD1/SCK0/SCK) sends the serial input clock to 7 pin (SCLK) of AD5623 chip U14 to 62 pin of LPC1765FBD100 chip, 60 pin of LPC1765FBD100 chip (P0 [18]/DCD1/MOSI0/MOSI) export serial data to 8 pin (DIN) of AD5623 chip.The electric current of LPC1765FBD100 chip in 8 pin (P0 [24]/AD0 [1]/I2SRX_WS/CAP3 [1]) received current/voltage regulator module adopts information, and the voltage of LPC1765FBD100 chip in 9 pin (P0 [23]/AD0 [0]/I2SRX_CLK/CAP3 [0]) received current/voltage regulator module adopts information.((serial communication of P2 [0]/PWM1 [1]/TXD1) 485 communication modules, the LPC1765FBD100 chip is through the serial communication of 98 pin (P0 [2]/TXD0/AD0 [7]), 99 pin (P0 [3]/RXD0/AD0 [6]) realization and 232 communication modules for P2 [1]/PWM1 [2]/RXD1), 75 pin through 74 pin for the LPC1765FBD100 chip.
Said device working power module comprises first transformer TRANSFORMER input interface, rectifier bridge heap 2KBP10 chip, power supply LM7812 chip, power supply MC7815 chip, power supply LM7915 chip, power supply MC78L05 chip and power supply SPX1117M-3.3 chip.By chip LM7812 provide+12V, chip MC7815 provide+15V, chip LM7915 provide-15V, chip MC78L05 provide+5V, chip SPX1117M-3.3 provide+3.3V is the VCC power supply, is respectively microprocessor module, current/voltage adjusting module, D/A modular converter, temperature detection and alarm module, Keysheet module, LED display module, 485 communication modules and the power supply of 232 communication modules.
Said power output power supply module comprises second transformer TRANSFORMER input interface, first relay, second relay, the 3rd relay, the 4th relay, rectifier bridge heap KBJ2510 chip, and the system power out-put supply is provided.
Said current/voltage adjusting module comprises first power field effect pipe, second power field effect pipe, first operational amplifier TLE2082ID chip, second operational amplifier TLE2082ID chip, power supply output OUT interface, light idol TLP521-1 chip, first triode, second triode, the 3rd triode, the 4th triode, the 5th triode.Wherein, The startup of first triode and light idol TLP521-1 chip controls current/voltage adjusting module; Second triode, the 3rd triode and second operational amplifier TLE2082ID chip constitute voltage close loop control; The 4th triode, the 5th triode and first operational amplifier TLE2082ID chip constitute current closed-loop control; First power field effect pipe and second power field effect pipe are realized power amplification, export the OUT interface to the load output voltage through power supply.
Said D/A modular converter comprises DA converter AD5623 chip.Wherein, 1 pin (VoutA) of AD5623 chip outputs to the current/voltage adjusting module, accomplishes the setting of output voltage, and 2 pin (VoutB) output current/voltage regulator module of AD5623 chip is accomplished the setting of output current.
Said temperature detection and alarm module comprise temperature sensor T_SENSOR interface and hummer.Wherein, the power tube temperature in the real-time monitoring current/voltage regulator module of temperature sensor when temperature over-range, is sent buzzing and is reported to the police.
Said Keysheet module comprises that first shift register SN74HC595D chip, second shift register SN74HC595D chip, scrambler EC11 chip, 4 LED lights and second keyboard show the DISPLAY interface.Realize that button value reads, keypress function is selected and press key function reminding.
Said LED display module comprises the 3rd shift register SN74HC595D chip, the 4th shift register SN74HC595D chip, first 4 light-emitting diode displays and second 4 light-emitting diode display.The demonstration of the voltage/current value of realization output, alarm message reminding etc.
Said 485 communication modules comprise first light idol 6N137 chip, second light idol 6N137 chip and 485 transmitter-receiver SP485EEN chips.Realize 485 communications of PC, program control aging power supply.
Said 232 communication modules comprise the 3rd light idol 6N137 chip, the 4th light idol 6N137 chip and 232 transmitter-receiver SP3232E chips.Realize 232 communications of PC, program control aging power supply.
Principle of work of the present invention: connect working power, program control aging power supply is accomplished hardware initialization work.According to the user output voltage is set, the output winding through four relay R L1, RL2, RL3 and the RL4 of power output power supply module selects power transformer requires power supply to be higher than the big 2V of output voltage is set.The voltage of four output of power transformer winding output is respectively AC2V, AC4V, AC8V, AC16V, and winding can be connected by end series arrangement of the same name; The output voltage values, the output current value that are provided with according to the user again; Calculate corresponding DA input value; Deliver to the current/voltage adjusting module through the D/A modular converter; The wherein U4A (as differential amplifier) and the U4B (with adjusting comparer) of first operational amplifier TLE2082ID chip in the DA of voltage output and the current/voltage adjusting module; Common formation voltage control loop, the DA output of electric current and the U7A (as differential amplifier) and the U7B (with adjusting comparer) of second operational amplifier TLE2082ID chip in the current/voltage adjusting module constitute current control loop jointly; At last, open power tube driving voltage switch, aging power initiation work with electric power starting.When the 7 pin output voltages of first operational amplifier TLE2082ID chip U4B in the current/voltage adjusting module are lower than the 7 pin output voltages of second operational amplifier TLE2082ID chip U7B; Power work is at constant voltage mode, and power supply is in the overcurrent protection state; When the 7 pin output voltages of first operational amplifier TLE2082ID chip U4B in the current/voltage adjusting module are higher than the 7 pin output voltages of second operational amplifier TLE2082ID chip U7B; Power work is at constant current mode, and power supply is in the overvoltage protection state.The LED nixie display that sampling circuit in the current/voltage adjusting module is delivered to display module with the sampled value of WV, electric current shows.In addition, after power supply output was opened, the temperature of first power field effect pipe Q1 and second power field effect pipe Q2 in the real-time monitoring current/voltage regulator module of the temperature detection of system and alarm module when temperature surpasses 55 ℃, was opened radiator fan; When temperature surpasses 75 ℃, send buzzing and report to the police; When temperature surpasses 85 ℃, powered-down output.
The present invention can be according to different aging test schemes; Issue through serial ports by PC order is set, be provided with and leave electric current, magnitude of voltage, realize the pulse output of current stabilization output or different frequency; Can adjust dutycycle; And having functions such as timing, power down protection, warning, aging data can upload to PC through serial ports and preserve, analyze, handle and generate corresponding report etc., and can select dissimilar serial ports as required.
Description of drawings
Fig. 1 is a principle of the invention structural representation;
Fig. 2 is a program control aging power principle structural representation among Fig. 1;
Fig. 3 is the microprocessor module synoptic diagram;
Fig. 4 is a device working power module diagram;
Fig. 5 is the power output power supply module diagram;
Fig. 6 is a current/voltage adjusting module synoptic diagram;
Fig. 7 is a D/A modular converter synoptic diagram;
Fig. 8 is temperature detection and alarm module synoptic diagram;
Fig. 9 is the Keysheet module synoptic diagram;
Figure 10 is a LED display module synoptic diagram;
Figure 11 is 485 communication module synoptic diagram;
Figure 12 is 232 communication module synoptic diagram.
Embodiment
Like Fig. 1, LED electrical characteristics detector comprises PC 1, program control aging power supply 2 and the aging frock clamp 3 of order interconnection.PC 1 realizes that setting, production data storage and product quality data statistic analysis, the analytical statement of relevant ageing parameter generate, and possess from intelligent functions such as maintenance, self-correcting, fault alarm, the man-machine close friend of software systems, intuitively easy-to-use.Program control aging power supply 2 provides aging working power for LED to be aging.Frock clamp 3 is realized the reliable clamping of LED to be aging.
Like Fig. 2, program control aging power supply 2 comprises: microprocessor module 2-1, device working power module 2-2, power output power supply module 2-3, current/voltage adjusting module 2-4, D/A modular converter 2-5, temperature detection and alarm module 2-6, Keysheet module 2-7, LED display module 2-8,485 communication module 2-9 and 232 communication module 2-10.Device working power module is connected respectively with microprocessor module, current/voltage adjusting module, D/A modular converter, temperature detection and alarm module, Keysheet module, LED display module, 485 communication modules and 232 communication modules; Current/voltage adjusting module, D/A modular converter, temperature detection and alarm module, Keysheet module, LED display module, 485 communication modules and 232 communication modules are connected with microprocessor module respectively; The power output power supply module is connected with the current/voltage adjusting module; The D/A modular converter is connected with the current/voltage adjusting module.
Like Fig. 3, said microprocessor module 2-1 comprises that central processing unit LPC1765FBD100 chip U10, storage AT24C16 chip U19, reference power supply REF3125AIDBZ chip U24, electrification reset SP708SEN chip U20, Darlington transistor ULN2003L chip U13, phase inverter SN74HC14D chip U11, crystal oscillator Y2, toggle switch SW1, JTAG emulation interface JP1, first keyboard of NXP semiconductors company show DISPLAY interface J7 and fan FAN interface J6.Wherein, 58 pin of LPC1765FBD100 chip U10 (P0 [20]/DTR1/SCL1) be connected with 6 pin (SCL) of storage AT24C16 chip U19 and the end of R57; (P0 [19]/DSR1/SDA1) is connected with 5 pin (SDA) of AT24C16 chip U19 and the end of R58 59 pin of LPC1765FBD100 chip U10; The R57 other end is connected with power supply VCC with 7 pin (WP) of the R58 other end, AT24C16 chip U19,8 pin (VCC) of AT24C16 chip U19, and 1 pin (A0) of AT24C16 chip U19,2 pin (A1), 3 pin (A2), 4 pin (GND) are connected with ground.12 pin (VREFP) of LPC1765FBD100 chip U10 are connected with 2 pin (OUT) of reference power supply REF3125AIDBZ chip U24, an end of capacitor C 61 and the anode of capacitor C 63; 15 pin (VREFN) of LPC1765FBD100 chip U10 are connected with ground with the negative terminal of 3 pin (GND) of REF3125AIDBZ chip U24, capacitor C 61 other ends, capacitor C 63; 1 pin (IN) of REF3125AIDBZ chip U24 is connected with the anode of an end of capacitor C 62 and capacitor C 64, and the negative terminal of capacitor C 62 other ends, capacitor C 64 is connected with ground.19 pin (VBAT) of LPC1765FBD100 chip U10 are connected with the end of R56, and the R56 other end is connected with power supply VCC.31 pin (VSS) of LPC1765FBD100 chip U10 are connected with ground with 41 pin (VSS), 55 pin (VSS), 72 pin (VSS), 83 pin (VSS), 97 pin (VSS).28 pin (VDD) of LPC1765FBD100 chip U10 are connected with power supply VCC with 54 pin (VDD), 71 pin (VDD), 96 pin (VDD), 42 pin (VDD), 84 pin (VDD).10 pin (VDDA) of LPC1765FBD100 chip U10 are connected with the anode of the end of C33, C34 and the end of R51; The R51 other end is connected with power supply VCC, and 11 pin (VSSA) of LPC1765FBD100 chip U10 are connected with ground with the negative terminal of the C33 other end, C34.17 pin (SYSRST) of LPC1765FBD100 chip U10 and 7 pin of electrification reset SP708SEN chip U20 (/RESET) be connected with the end of R63; The R63 other end is connected with ground; 1 pin of SP708SEN chip U20 (/MR) be connected with an end of switch S 7; 1 pin (VCC) of SP708SEN chip U20 is connected with power supply VCC with an end of capacitor C 48, and 3 pin (GND) of SP708SEN chip U20 are connected with ground with 4 pin (PFI) of SP708SEN chip U20, switch S 7 other ends, capacitor C 48 other ends.73 pin of LPC1765FBD100 chip U10 (P2 [2]/PWM1 [3]/CTS1/ TRACEDATA [3]) are connected with 1 pin of phase inverter SN74HC14D chip U11; 2 pin of SN74HC14D chip U11 are connected with 5 pin (IN5), 6 pin (IN6) and 7 pin (IN7) of Darlington transistor ULN2003L chip U13; 70 pin of LPC1765FBD100 chip U10 (P2 [3]/PWM1 [4]/DCD1/TRACEDATA [2]) are connected with 3 pin of SN74HC14D chip U11; 4 pin of SN74HC14D chip U11 are connected with 4 pin (IN4) of ULN2003L chip U13; 69 pin of LPC1765FBD100 chip U10 (P2 [4]/PWM1 [5]/DSR1/TRACEDATA [1]) are connected with 5 pin of SN74HC14D chip U11; 6 pin of SN74HC14D chip U11 are connected with 3 pin (IN3) of ULN2003L chip U13; 68 pin of LPC1765FBD100 chip U10 (P2 [5]/PWM1 [6]/DTR1/TRACEDATA [0]) are connected with 9 pin of SN74HC14D chip U11; 8 pin of SN74HC14D chip U11 are connected with 2 pin (IN2) of ULN2003L chip U13; 67 pin of LPC1765FBD100 chip U10 (P2 [6]/PCAP1 [0]/RI1/TRACECLK]) be connected with 11 pin of SN74HC14D chip U11; 10 pin of SN74HC14D chip U10 are connected with 1 pin (IN1) of ULN2003L chip U13; 8 pin (GND) of ULN2003L chip U13 are connected with ground; 9 pin (COM) of ULN2003L chip U13 are connected with+12V power supply; 10 pin (OUT7) of ULN2003L chip U13 are connected with an end of 11 pin (OUT6), 12 pin (OUT5), capacitor C 29 and 3 pin of fan FAN interface J6, and 2 pin of capacitor C 29 other ends and interface J6 are connected with+12V power supply, 13 pin (OUT4) of ULN2003L chip U13,14 pin (OUT3), 15 pin (OUT2), 16 pin (OUT1) respectively with power output power supply module 2-3 in 5 pin, 5 pin of the 3rd relay R L3,5 pin of second relay R L2,5 pin of first relay R L1 of the 4th relay R L4 be connected.(P2 [10]/EINT0/NMI) is connected with the end of R68 and the end of R69 53 pin of LPC1765FBD100 chip U10, and the R68 other end is connected with power supply VCC, and the R69 other end is connected with ground.(1 pin of first triode Q6 among P2 [11]/EINT1/I2STX_CLK) and the current/voltage adjusting module 2-4 is connected 52 pin of LPC1765FBD100 chip U10.One end of the resistance R 55 among 27 pin of LPC1765FBD100 chip U10 (P3 [25]/MAT0 [0]/PWM1 [2]) and temperature detection and the alarm module 2-6 is connected, and (end of the resistance R 60 among P4 [28]/RX_MCLK/MAT2 [0]/TXD3) and temperature detection and the alarm module 2-6 is connected 82 pin of LPC1765FBD100 chip U10.22 pin (XTAL1) of LPC1765FBD100 chip U10 are connected with the end of the end of R62, crystal oscillator Y2 and an end of capacitor C 47; 23 pin (XTAL2) of LPC1765FBD100 chip U10 are connected with an end of the R62 other end, the crystal oscillator Y2 other end and capacitor C 50, and capacitor C 47 other ends are connected with ground with capacitor C 50 other ends.((((P1 [8]/ENET_CRS) is connected with 4 pin, 3 pin, 2 pin, 1 pin of toggle switch SW1 respectively 95 pin of LPC1765FBD100 chip U10, and 5 pin of toggle switch SW1 are connected with ground with 6 pin, 7 pin, 8 pin for P1 [4]/ENET_TX_EN), 92 pin for P1 [1]/ENET_TXD1), 93 pin for P1 [0]/ENET_TXD0), 94 pin.1 pin (TDO/SWO) of LPC1765FBD100 chip U10 is connected with an end of 7 pin of JTAG emulation interface JP1 and resistance R 64; 2 pin (TDI) of LPC1765FBD100 chip U10 are connected with an end of 3 pin of interface JP1 and resistance R 65; 3 pin (TMS/SWDIO) of LPC1765FBD100 chip U10 are connected with an end of 4 pin of interface JP1 and resistance R 66; 4 pin (TRST) of LPC1765FBD100 chip U10 are connected with an end of 2 pin of interface JP1 and resistance R 67; 5 pin (TCK/SWDCLK) of LPC1765FBD100 chip U10 are connected with an end of 5 pin of interface JP1 and resistance R 71; 100 pin (RTCK) of LPC1765FBD100 chip U10 are connected with an end of 6 pin of interface JP1 and resistance R 70, and resistance R 64 other ends are connected with power supply VCC with resistance R 65 other ends, resistance R 66 other ends, resistance R 67 other ends, resistance R 71 other ends, and resistance R 70 other ends are connected with ground; 1 pin of interface JP1 is connected with power supply VCC, and 9 pin of interface JP1 are connected with ground with 10 pin.48 pin of LPC1765FBD100 chip U10 (P0 [10]/TXD2/SDA2/MAT3 [0]) show that with first keyboard 3 pin of DISPLAY interface J7 are connected; 49 pin of LPC1765FBD100 chip U10 (P0 [11]/RXD2/SCL2/MAT3 [1]) are connected with 2 pin of interface J7; 1 pin of interface J7 is connected with ground; 5 pin are connected with power supply VCC, 6 pin of interface J7,7 pin, 8 pin, 9 pin, 10 pin respectively with Keysheet module 2-7 in second keyboard show that 6 pin, 7 pin, 8 pin, 9 pin, 10 pin of DISPLAY interface J1 are connected.81 pin of LPC1765FBD100 chip U10 (P0 [4]/I2SRX_CLK/RD2/CAP2 [0]) are connected with 4 pin of interface J7, and 80 pin of LPC1765FBD100 chip U10 (P0 [5]/I2SRX_WS/TD2/CAP2 [1]), 79 pin (P0 [6]/I2SRX_SDA/SSEL1/MAT2 [0]), 78 pin (P0 [7]/I2STX_CLK/SCK1/MAT2 [1]), 77 pin (P0 [8]/I2STX_WS/MISO/MAT2 [2]), 76 pin (P0 [9]/I2STX_SDA/MOSI/MAT2 [3]) are connected with 6 pin, 7 pin, 8 pin, 9 pin, 10 pin of interface J7 respectively.24 pin of LPC1765FBD100 chip U10 (4 pin of the DA converter AD5623 chip U14 among P0 [28]/SCL0/USB_SCL) and the D/A modular converter 2-5 (/LDAC) be connected; 29 pin of LPC1765FBD100 chip U10 (5 pin of P0 [29]/USB_D+) and AD5623 chip U14 (/LCR) be connected; 30 pin of LPC1765FBD100 chip U10 (6 pin of P0 [30]/USB_D) and AD5623 chip U14 (/SYNC) be connected; (P0 [15]/TXD1/SCK0/SCK) be connected with 7 pin (SCLK) of AD5623 chip U14, (P0 [18]/DCD1/MOSI0/MOSI) is connected with 8 pin (DIN) of AD5623 chip U14 60 pin of LPC1765FBD100 chip U10 62 pin of LPC1765FBD100 chip U10.One end of the resistance R 47 among 8 pin of LPC1765FBD100 chip U10 (P0 [24]/AD0 [1]/I2SRX_WS/CAP3 [1]) and the current/voltage adjusting module 2-4 and an end of capacitor C 28 are connected, and an end of the resistance R 26 among 9 pin of LPC1765FBD100 chip U10 (P0 [23]/AD0 [0]/I2SRX_CLK/CAP3 [0]) and the current/voltage adjusting module 2-4 and an end of capacitor C 14 are connected.(6 pin of first light idol 6N137 chip U3 among P2 [1]/PWM1 [2]/RXD1) and the 485 communication module 2-9 are connected 74 pin of LPC1765FBD100 chip U10; (3 pin of second light idol 6N137 chip U26 among P2 [0]/PWM1 [1]/TXD1) and the 485 communication module 2-9 are connected 75 pin of LPC1765FBD100 chip U10; 3 pin of the 4th light idol 6N137 chip U25 among 98 pin of LPC1765FBD100 chip U10 (P0 [2]/TXD0/AD0 [7]) and the 232 communication module 2-10 are connected, and 6 pin of the even 6N137 chip of the 3rd the light U1 among 99 pin of LPC1765FBD100 chip U10 (P0 [3]/RXD0/AD0 [6]) and the 232 communication module 2-10 and an end of resistance R 10 are connected.
Like Fig. 4, said device working power module 2-2 comprises first transformer TRANSFORMER input interface J9, rectifier bridge heap 2KBP10 chip U18, power supply LM7812 chip U16, power supply MC7815 chip U17, power supply LM7915 chip U22, power supply MC78L05 chip U23 and power supply SPX1117M-3.3 chip U12.Provided+12V by chip LM7812, chip MC7815 provides+15V, and chip LM7915 provides-15V, and chip MC78L05 provides+5V, and chip SPX1117M-3.3 provides+and the 3.3V working power is VCC.Wherein, 1 pin of interface J9 is connected with ground with 2 pin (GND) of the negative terminal of capacitor C 51, power supply MC78L05 chip U23, the negative terminal of capacitor C 52, an end of capacitor C 53, and 1 pin (OUT) of MC78L05 chip U23 and the anode of capacitor C 52, capacitor C 53 other ends are connected with+5V power supply.2 pin of interface J9 are connected with the anode of diode D9, and the negative terminal of diode D9 is connected with 3 pin (IN) of MC78L05 chip U23 and the anode of capacitor C 51.3 pin of interface J9 are connected with 2 pin of rectifier bridge heap 2KBP10 chip U18; 5 pin of interface J9 are connected with 4 pin of rectifier bridge heap 2KBP10 chip U18; 1 pin of rectifier bridge heap 2KBP10 chip U18 is connected with 2 pin (IN) of power supply LM7915 chip U22, an end of capacitor C 42 and the negative terminal of capacitor C 44; One end of 3 pin (OUT) of power supply LM7915 chip U22 and the negative terminal of capacitor C 45, capacitor C 43 is connected with-15V power supply; The anode of 4 pin of interface J9 and capacitor C 42 other ends, capacitor C 44, the anode of capacitor C 45, capacitor C 43 other ends, an end of capacitor C 40, the negative terminal of capacitor C 38, the negative terminal of capacitor C 39, an end of capacitor C 41 are connected with ground; 3 pin of rectifier bridge heap 2KBP10 chip U18 are connected with the anode of 1 pin (IN), capacitor C 40 other ends and the capacitor C 38 of 1 pin (IN) of power supply LM7812 chip U16, power supply MC7815 chip U17, and the anode of 3 pin (OUT) of power supply MC7815 chip U17, capacitor C 41 other ends, capacitor C 39 is connected with+15V.2 pin (GND) of power supply LM7812 chip U16 are connected with ground with the negative terminal of capacitor C 36, an end of capacitor C 37, and 3 pin (OUT) of power supply LM7812 chip U16 and the anode of capacitor C 36, capacitor C 37 other ends are connected with+12V power supply.1 pin (GND) of power supply SPX1117M-3.3 chip U12 is connected with ground with an end of an end of capacitor C 30, capacitor C 31, the negative terminal of capacitor C 32; 2 pin (VOUT) of power supply SPX1117M-3.3 chip U12 are connected with power supply VCC with the anode of 4 pin (TAB), capacitor C 31 other ends, capacitor C 32; 3 pin (VIN) of power supply SPX1117M-3.3 chip U12 are connected with the negative terminal of capacitor C 30 other ends and diode D6, and the anode of diode D6 is connected with+12V power supply.
Like Fig. 5, said power output power supply module 2-3 comprises second transformer TRANSFORMER input interface J7, first relay R L1, second relay R L2, the 3rd relay R L3, the 4th relay R L4, rectifier bridge heap KBJ2510 chip U2.Wherein, 8 pin of interface J7 are connected with 3 pin of first relay R L1; 2 pin of first relay R L1 are connected with+12V power supply, and 1 pin of first relay R L1 is connected with 3 pin of rectifier bridge heap KBJ2510 chip U2, and 4 pin of first relay R L1 are connected with 7 pin of interface J7; 6 pin of interface J7 are connected with 3 pin of second relay R L2; 2 pin of second relay R L2 are connected with+12V power supply, and 1 pin of second relay R L2 is connected with 4 pin of first relay R L1, and 4 pin of second relay R L2 are connected with 5 pin of interface J7; 4 pin of interface J7 are connected with 3 pin of the 3rd relay R L3; 2 pin of the 3rd relay R L3 are connected with+12V power supply, and 1 pin of the 3rd relay R L3 is connected with 4 pin of second relay R L2, and 4 pin of the 3rd relay R L3 are connected with 3 pin of interface J7; 2 pin of interface J7 are connected with 3 pin of the 4th relay R L4; 2 pin of the 4th relay R L4 are connected with+12V power supply, and 1 pin of the 4th relay R L4 is connected with 4 pin of the 3rd relay R L3, and 4 pin of the 4th relay R L4 are connected with 2 pin of 1 pin of interface J7, rectifier bridge heap KBJ2510 chip U2; 4 pin of rectifier bridge heap KBJ2510 chip U2 are connected with ground with the negative terminal of capacitor C 6, an end of capacitor C 7, an end of resistance R 12, and 2 pin of second power field effect pipe Q2 among 1 pin that rectifier bridge is piled KBJ2510 chip U2 and anode, capacitor C 7 other ends, resistance R 12 other ends and the current/voltage adjusting module 2-4 of capacitor C 6 are connected.
Like Fig. 6, said current/voltage adjusting module 2-4 comprises first power field effect pipe Q1, second power field effect pipe Q2, first operational amplifier TLE2082ID chip U4, second operational amplifier TLE2082ID chip U7, power supply output OUT interface J2.Wherein, 1 pin of first triode Q6 is connected with an end of resistance R 35, and resistance R 35 other ends are connected with power supply VCC with an end of resistance R 32; Resistance R 32 other ends are connected with 1 pin of first light idol TLP521-1 chip U6, and 2 pin of light idol TLP521-1 chip U6 are connected with 3 pin of first triode Q6, and 2 pin of first triode Q6 are connected with ground with an end of resistance R 43; 3 pin of light idol TLP521-1 chip U6 are connected with an end of resistance R 31, and the other end of resistance R 31 is connected with+15V power supply, and 4 pin of the even TLP521-1 chip of light U6 are connected with resistance R 43 other ends with an end of resistance R 17, an end of resistance R 18, the anode of diode D2, the anode of diode D3; The negative terminal of diode D3 is connected with 3 pin of an end of capacitor C 17, an end of resistance R 40, second triode Q7 and 3 pin of the 3rd triode Q8, and resistance R 40 other ends are connected with 1 pin of 1 pin of second triode Q7, the 3rd triode Q8 and 7 pin of second operational amplifier TLE2082ID chip U7, and 8 pin of 2 pin of second triode Q7 and second operational amplifier TLE2082ID chip U7 are connected with+15V power supply; 4 pin of 2 pin of the 3rd triode Q8 and second operational amplifier TLE2082ID chip U7 are connected with-15V power supply, and 6 pin of second operational amplifier TLE2082ID chip U7 are connected with an end of an end of capacitor C 17 other ends, resistance R 34, capacitor C 20 and an end of resistance R 39, and resistance R 34 other ends are connected with+15V power supply; Capacitor C 20 other ends are connected with an end of resistance R 39 other ends, resistance R 47 other ends, resistance R 45, an end of capacitor C 27 and 1 pin of second operational amplifier TLE2082ID chip U7, and 5 pin of second operational amplifier TLE2082ID chip U7 are connected with an end of resistance R 42, and resistance R 42 other ends are connected with an end of resistance R 44 and an end of capacitor C 24; Capacitor C 24 other ends are connected with ground with capacitor C 28 other ends, and resistance R 45 other ends are connected with an end of resistance R 46, and resistance R 46 other ends are connected with an end of capacitor C 27 other ends, resistance R 41 and 2 pin of second operational amplifier TLE2082ID chip U7; 3 pin of second operational amplifier TLE2082ID chip U7 are connected with ground, and resistance R 41 other ends are connected with 1 pin of interface J2, and the negative terminal of diode D2 is connected with 3 pin of an end of capacitor C 8, an end of resistance R 21, the 4th triode Q3 and 3 pin of the 5th triode Q4; Resistance R 21 other ends are connected with 1 pin of 1 pin of the 4th triode Q3, the 5th triode Q4 and 7 pin of first operational amplifier TLE2082ID chip U4, and 8 pin of 2 pin of the 4th triode Q3 and first operational amplifier TLE2082ID chip U4 are connected with+15V power supply, and 4 pin of 2 pin of the 5th triode Q4 and first operational amplifier TLE2082ID chip U4 are connected with-15V power supply; 6 pin of first operational amplifier TLE2082ID chip U4 are connected with an end of an end of capacitor C 8 other ends, resistance R 14, capacitor C 10 and an end of resistance R 19, and resistance R 14 other ends are connected with+15V power supply, and capacitor C 10 other ends are connected with an end of resistance R 19 other ends, resistance R 26 other ends, resistance R 23, an end of capacitor C 11 and 1 pin of first operational amplifier TLE2082ID chip U4; 5 pin of first operational amplifier TLE2082ID chip U4 are connected with an end of resistance R 24, and resistance R 24 other ends are connected with an end of resistance R 25 and an end of capacitor C 12, and capacitor C 12 other ends are connected with ground with capacitor C 14 other ends; Resistance R 23 other ends are connected with an end of capacitor C 11 other ends, capacitor C 13, an end of resistance R 22 and an end of resistance R 28; Resistance R 22 other ends are connected with 2 pin of first operational amplifier TLE2082ID chip U4, and resistance R 28 other ends are connected with ground with 2 pin of capacitor C 13 other ends, interface J2, and 3 pin of first operational amplifier TLE2082ID chip U4 are connected with an end of resistance R 15; The R15 other end is connected with an end of capacitor C 3, an end of capacitor C 9, an end of resistance R 6 and an end of resistance R 16; Capacitor C 9 other ends are connected with ground with resistance R 16 other ends, and resistance R 17 other ends are connected with 1 pin of second power field effect pipe Q2, and resistance R 18 other ends are connected with 1 pin of first power field effect pipe Q1; 2 pin of second power field effect pipe Q2 are connected with 2 pin of first power field effect pipe Q1; 3 pin of second power field effect pipe Q2 are connected with an end of resistance R 9, and 32 pin of first power field effect pipe Q1 are connected with an end of resistance R 4, and resistance R 9 other ends are connected with ground with an end of resistance R 4 other ends, resistance R 8, an end of resistance R 5; Resistance R 8 other ends are connected with ground with the anode of diode D1, the negative terminal of capacitor C 4, an end of capacitor C 2, and 1 pin of the negative terminal of resistance R 5 other ends and diode D1, anode, capacitor C 2 other ends, capacitor C 3 other ends, resistance R 6 other ends and the interface J2 of capacitor C 4 is connected.
Like Fig. 7, said D/A modular converter 2-5 comprises DA converter AD5623 chip U14.Wherein, 3 pin (GND) of AD5623 chip U14 are connected with ground; 9 pin (VDD) of AD5623 chip U14 are connected with power supply VCC; 12 pin (VREFP) of LPC1765FBD100 chip U10 among 10 pin (VREF) of AD5623 chip U14 and the microprocessor module 2-1 are connected; 1 pin (VoutA) of AD5623 chip U14 is connected with resistance R 25 other ends among the current/voltage adjusting module 2-4, and 2 pin (VoutB) of AD5623 chip U14 are connected with resistance R 44 other ends among the current/voltage adjusting module 2-4.
Like Fig. 8, said temperature detection and alarm module 2-6 comprise temperature sensor T_SENSOR interface J8 and hummer U21.Wherein, 1 pin of interface J8 is connected with ground, and 2 pin of interface J8 are connected with an end of resistance R 55 other ends and resistance R 53, and 3 pin of interface J8 are connected with an end of an end of resistance R 52 and capacitor C 35; Resistance R 52 other ends are connected with power supply VCC with resistance R 53 other ends; Capacitor C 35 other ends are connected with ground, and the other end of resistance R 60 is connected with an end of resistance R 59 and 1 pin of triode Q9, and resistance R 59 other ends are connected with 3 pin of triode Q9 and the end of hummer U21; 2 pin of triode Q9 are connected with ground, and the hummer U21 other end is connected with+5V power supply.
Like Fig. 9, said Keysheet module 2-7 comprises that first shift register SN74HC595D chip U31, second shift register SN74HC595D chip U32, scrambler EC11 chip S6 and second keyboard show DISPLAY interface J1.Wherein, second keyboard shows that 5 pin of DISPLAY interface J1 are connected with power supply VCC, and 1 pin of interface J1 is connected with ground; 2 pin of interface J1 are connected with 11 pin (SRCLK) of first shift register SN74HC595D chip U31 and 11 pin (SRCLK) of second shift register SN74HC595D chip U32, and 3 pin of interface J1 are connected with 12 pin (RCLK) of first shift register SN74HC595D chip U31 and 12 pin (RCLK) of second shift register SN74HC595D chip U32, and 4 pin of interface J1 are connected with 14 pin (SER) of second shift register SN74HC595D chip U32 and an end of resistance R 90; 13 pin of first shift register SN74HC595D chip U31 (/OE), 8 pin (GND) are connected with ground, 10 pin of first shift register SN74HC595D chip U31 (/SRCLR), 16 pin (VCC) are connected with power supply VCC, 13 pin of second shift register SN74HC595D chip U32 (/OE), 8 pin (GND) are connected with ground; 10 pin of second shift register SN74HC595D chip U32 (/SRCLR), 16 pin (VCC) are connected with power supply VCC, 15 pin (QA) of first shift register SN74HC595D chip U31 are connected with the anode of diode D11, and the negative terminal of diode D11 is connected with the end of button S1; 1 pin (QB) of first shift register SN74HC595D chip U31 is connected with the anode of diode D12, and the negative terminal of diode D12 is connected with the end of button S2, and 2 pin (QC) of first shift register SN74HC595D chip U31 are connected with the anode of diode D13; The negative terminal of diode D13 is connected with the end of button S3, and 3 pin (QD) of first shift register SN74HC595D chip U31 are connected with the anode of diode D14, and the negative terminal of diode D14 is connected with the end of button S4; 4 pin (QE) of first shift register SN74HC595D chip U31 are connected with the anode of diode D15, and the negative terminal of diode D15 is connected with the end of button S5, and 5 pin (QF) of first shift register SN74HC595D chip U31 are connected with the anode of diode D16; The negative terminal of diode D16 is connected with 1 pin (KA) of scrambler EC11 chip S6; 6 pin (QG) of first shift register SN74HC595D chip U31 are connected with the anode of diode D17, and the negative terminal of diode D17 is connected with 3 pin (KC) of scrambler EC11 chip S6, and 7 pin (QH) of first shift register SN74HC595D chip U31 are connected with the anode of diode D18; The negative terminal of diode D18 is connected with 4 pin (S1) of scrambler EC11 chip S6; Resistance R 90 other ends are connected with an end, the button S1 other end, the button S2 other end, the button S3 other end, the button S4 other end, the button S5 other end, 2 pin (KB) of scrambler EC11 chip S6 and 5 pin (S2) of scrambler EC11 chip S6 of resistance R 85, and resistance R 85 other ends are connected with ground, and 15 pin (QA) of second shift register SN74HC595D chip U32 are connected with an end of resistance R 86; Resistance R 86 other ends are connected with the negative terminal of luminotron LED1; 1 pin (QB) of second shift register SN74HC595D chip U32 is connected with an end of resistance R 87, and resistance R 87 other ends are connected with the negative terminal of luminotron LED2, and 2 pin (QC) of second shift register SN74HC595D chip U32 are connected with an end of resistance R 88; Resistance R 88 other ends are connected with the negative terminal of luminotron LED3; 3 pin (QD) of second shift register SN74HC595D chip U32 are connected with an end of resistance R 89, and resistance R 89 other ends are connected with the negative terminal of luminotron LED4, and the anode of luminotron LED1 is connected with power supply VCC with the anode of luminotron LED2, the anode of luminotron LED3, the anode of luminotron LED4; 9 pin of the 4th shift register SN74HC595D chip U34 among 14 pin (SER) of first shift register SN74HC595D chip U31 and the LED display module 2-8 (QH ') be connected; 14 pin (SER) of the 3rd shift register SN74HC595D chip U33 among 9 pin of second shift register SN74HC595D chip U32 (QH ') and the LED display module 2-8 are connected, and an end of the resistance R 81 among 4 pin (QE) of second shift register SN74HC595D chip U32 and the LED display module 2-8 is connected, and an end of the resistance R 82 among 5 pin (QF) of second shift register SN74HC595D chip U32 and the LED display module 2-8 is connected; One end of the resistance R 83 among 6 pin (QG) of second shift register SN74HC595D chip U32 and the LED display module 2-8 is connected, and an end of the resistance R 84 among 7 pin (QH) of second shift register SN74HC595D chip U32 and the LED display module 2-8 is connected.
Like Figure 10, said LED display module 2-8 comprises the 3rd shift register SN74HC595D chip U33, the 4th shift register SN74HC595D chip U34, first 4 light-emitting diode display SM1 and second 4 light-emitting diode display SM2.Wherein, 11 pin (SRCLK) of 11 pin (SRCLK) of the 3rd shift register SN74HC595D chip U33 and the 4th shift register SN74HC595D chip U34 and second keyboard show that 2 pin of DISPLAY interface J1 are connected, and 3 pin of second keyboard demonstration DISPLAY interface J1 among 12 pin (RCLK) of 12 pin (RCLK) of the 3rd shift register SN74HC595D chip U33 and the 4th shift register SN74HC595D chip U34 and the Keysheet module 2-7 are connected; 13 pin of the 3rd shift register SN74HC595D chip U33 (/OE), 8 pin (GND) are connected with ground, 10 pin of the 3rd shift register SN74HC595D chip U33 (/SRCLR), 16 pin (VCC) are connected with power supply VCC, 13 pin of the 4th shift register SN74HC595D chip U34 (/OE), 8 pin (GND) are connected with ground; 10 pin of the 4th shift register SN74HC595D chip U34 (/SRCLR), 16 pin (VCC) are connected with power supply VCC, 15 pin (QA) of the 3rd shift register SN74HC595D chip U33 are connected with an end of resistance R 91, and resistance R 91 other ends are connected with 11 pin (a) of first 4 light-emitting diode display SM1; 1 pin (QB) of the 3rd shift register SN74HC595D chip U33 is connected with an end of resistance R 92, and resistance R 92 other ends are connected with 7 pin (b) of first 4 light-emitting diode display SM1, and 2 pin (QC) of the 3rd shift register SN74HC595D chip U33 are connected with an end of resistance R 93; Resistance R 93 other ends are connected with 4 pin (c) of first 4 light-emitting diode display SM1, and 3 pin (QD) of the 3rd shift register SN74HC595D chip U33 are connected with an end of resistance R 94, and resistance R 94 other ends are connected with 2 pin (d) of first 4 light-emitting diode display SM1; 4 pin (QE) of the 3rd shift register SN74HC595D chip U33 are connected with an end of resistance R 95, and resistance R 95 other ends are connected with 1 pin (e) of first 4 light-emitting diode display SM1, and 5 pin (QF) of the 3rd shift register SN74HC595D chip U33 are connected with an end of resistance R 96; Resistance R 96 other ends are connected with 10 pin (f) of first 4 light-emitting diode display SM1, and 6 pin (QG) of the 3rd shift register SN74HC595D chip U33 are connected with an end of resistance R 97, and resistance R 97 other ends are connected with 5 pin (g) of first 4 light-emitting diode display SM1; 7 pin (QH) of the 3rd shift register SN74HC595D chip U33 are connected with an end of resistance R 98, and resistance R 98 other ends are connected with 3 pin (dp) of first 4 light-emitting diode display SM1, and 9 pin of the 3rd shift register SN74HC595D chip U33 (QH ') be connected with 14 pin (SER) of the 4th shift register SN74HC595D chip U34; 15 pin (QA) of the 4th shift register SN74HC595D chip U34 are connected with an end of resistance R 119, and resistance R 119 other ends are connected with 11 pin (a) of second 4 light-emitting diode display SM2, and 1 pin (QB) of the 4th shift register SN74HC595D chip U34 is connected with an end of resistance R 120; Resistance R 120 other ends are connected with 7 pin (b) of second 4 light-emitting diode display SM2, and 2 pin (QC) of the 4th shift register SN74HC595D chip U34 are connected with an end of resistance R 121, and resistance R 121 other ends are connected with 4 pin (c) of second 4 light-emitting diode display SM2; 3 pin (QD) of the 4th shift register SN74HC595D chip U34 are connected with an end of resistance R 122, and resistance R 122 other ends are connected with 2 pin (d) of second 4 light-emitting diode display SM2, and 4 pin (QE) of the 4th shift register SN74HC595D chip U34 are connected with an end of resistance R 123; Resistance R 123 other ends are connected with 1 pin (e) of second 4 light-emitting diode display SM2, and 5 pin (QF) of the 4th shift register SN74HC595D chip U34 are connected with an end of resistance R 124, and resistance R 124 other ends are connected with 10 pin (f) of second 4 light-emitting diode display SM2; 6 pin (QG) of the 4th shift register SN74HC595D chip U34 are connected with an end of resistance R 125, and resistance R 125 other ends are connected with 5 pin (g) of second 4 light-emitting diode display SM2, and 7 pin (QH) of the 4th shift register SN74HC595D chip U34 are connected with an end of resistance R 126; Resistance R 126 other ends are connected with 3 pin (dp) of second 4 light-emitting diode display SM2, and the other end of resistance R 81 is connected with 1 pin of triode Q11, and 3 pin of triode Q11 are connected with ground; 2 pin of triode Q11 are connected with 12 pin (L1) of first 4 light-emitting diode display SM1 and 12 pin (L1) of second 4 light-emitting diode display SM2, and the other end of resistance R 82 is connected with 1 pin of triode Q12, and 3 pin of triode Q12 are connected with ground; 2 pin of triode Q12 are connected with 9 pin (L2) of first 4 light-emitting diode display SM1 and 9 pin (L2) of second 4 light-emitting diode display SM2, and the other end of resistance R 83 is connected with 1 pin of triode Q13, and 3 pin of triode Q13 are connected with ground; 2 pin of triode Q13 are connected with 8 pin (L3) of first 4 light-emitting diode display SM1 and 8 pin (L3) of second 4 light-emitting diode display SM2; The other end of resistance R 84 is connected with 1 pin of triode Q14, and 3 pin of triode Q14 are connected with ground, and 2 pin of triode Q14 are connected with 6 pin (L4) of first 4 light-emitting diode display SM1 and 6 pin (L4) of second 4 light-emitting diode display SM2.
Like Figure 11, said 485 communication module 2-9 comprise first light idol 6N137 chip U3, second light idol 6N137 chip U26 and 485 transmitter-receiver SP485EEN chip U5.Wherein, 6 pin (VO) of first light idol 6N137 chip U3 are connected with an end of resistance R 11; 5 pin (VSS) of first light idol 6N137 chip U3 are connected with ground with an end of capacitor C 65; 7 pin (VE) of first light idol 6N137 chip U3 are connected with power supply VCC with 8 pin (VDD), capacitor C 65 other ends, resistance R 11 other ends; 2 pin (+) of first light idol 6N137 chip U3 are connected with an end of resistance R 20, and resistance R 20 other ends are connected with+5V power supply, and 3 pin (-) of the even 6N137 chip of first light U3 are connected with 1 pin (RO) of 485 transmitter-receiver SP485EEN chip U5; 2 pin of SP485EEN chip U5 (/RE) be connected with an end of 3 pin (DE), capacitor C 16, the end of electric capacity R33 and 2 pin of triode Q5; Capacitor C 16 other ends are connected with ground with the electric capacity R33 other end, and 4 pin (DI) of SP485EEN chip U5 are connected with an end of an end of resistance R 27, resistance R 3 and 6 pin (VO) of second light idol 6N137 chip U26, and resistance R 27 other ends are connected with 1 pin of triode Q5; 3 pin of triode Q5 are connected with+5V power supply; 5 pin (GND) of SP485EEN chip U5 are connected with ground, and 6 pin (A) of SP485EEN chip U5 are connected with an end of an end of resistance R 36, capacitor C 18 and 2 pin of PC 485 interface J4, and 7 pin (B) of SP485EEN chip U5 are connected with an end of an end of resistance R 30, capacitor C 15 and 1 pin of PC 485 interface J4; Capacitor C 18 other ends and capacitor C 15 other ends be connected; 8 pin (VCC) of SP485EEN chip U5 are connected with+5V power supply, and resistance R 30 other ends are connected with+5V power supply, and resistance R 36 other ends are connected with ground; 2 pin (+) of second light idol 6N137 chip U26 are connected with an end of resistance R 7; Resistance R 7 other ends are connected with power supply VCC, and 5 pin (VSS) of second light idol 6N137 chip U26 are connected with ground with an end of capacitor C 66, and 7 pin (VE) of second the even 6N137 chip of light U26 and 8 pin (VDD), resistance R 3 other ends, capacitor C 66 other ends are connected with+5V power supply.
Like Figure 12, said 232 communication module 2-10 comprise the 3rd light idol 6N137 chip U1, the 4th light idol 6N137 chip U25 and 232 transmitter-receiver SP3232E chip U9.Wherein, 6 pin (VO) of the 3rd light idol 6N137 chip U1 are connected with an end of resistance R 10; 5 pin (VSS) of the 3rd light idol 6N137 chip U1 are connected with ground with an end of capacitor C 5; 7 pin (VE) of the 3rd light idol 6N137 chip U1 are connected with power supply VCC with 8 pin (VDD), capacitor C 5 other ends, resistance R 10 other ends; 2 pin (+) of the 3rd light idol 6N137 chip U1 are connected with an end of resistance R 13, and resistance R 13 other ends are connected with+5V power supply, and 3 pin (-) of the 3rd the even 6N137 chip of light U1 are connected with 9 pin (R2OUT) of 232 transmitter-receiver SP3232E chip U9; 1 pin (C1+) of SP3232E chip U9 is connected with an end of capacitor C 23; 3 pin (C1-) of SP3232E chip U9 are connected with capacitor C 23 other ends, and 4 pin (C2+) of SP3232E chip U9 are connected with an end of capacitor C 25, and 5 pin (C2-) of SP3232E chip U9 are connected with capacitor C 25 other ends; 2 pin (V+) of SP3232E chip U9 are connected with an end of capacitor C 22; 16 pin (VCC) of SP3232E chip U9 and capacitor C 22 other ends are connected with+5V power supply, and 6 pin (V-) of SP3232E chip U9 are connected with an end of capacitor C 26, and 15 pin (GND) of SP3232E chip U9 are connected with ground with capacitor C 26 other ends; 10 pin (T2IN) of SP3232E chip U9 are connected with 6 pin (VO) of an end of resistance R 2 with the 4th light idol 6N137 chip U25; 7 pin (T2OUT) of SP3232E chip U9 are connected with 5 pin of PC 232 interface J5, and 8 pin (R2IN) of SP3232E chip U9 are connected with 3 pin of PC 232 interface J5, and 10 pin of PC 232 interface J5 are connected with ground; 2 pin (+) of the 4th light idol 6N137 chip U25 are connected with an end of resistance R 1; Resistance R 1 other end is connected with power supply VCC, and 5 pin (VSS) of the 4th light idol 6N137 chip U25 are connected with ground with an end of capacitor C 1, and 7 pin (VE) of the 4th the even 6N137 chip of light U25 and 8 pin (VDD), resistance R 2 other ends, capacitor C 1 other end are connected with+5V power supply.
Implementation process of the present invention is following.
Connect system power supply; Device working power module 2-2 is respectively microprocessor module 2-1, current/voltage adjusting module 2-4, D/A modular converter 2-5, temperature detection and alarm module 2-6, Keysheet module 2-7, LED display module 2-8,485 communication module 2-9 and the 232 communication module 2-10 power supply of program control ageing test apparatus; Microprocessor module 2-1 accomplishes hardware initialization work; Through 485 communication module 2-9 or 232 communication module 2-10; Accept the output voltage that PC 1 or Keysheet module 2-7 be provided with, the settings and the power supply of output current left order, and in the storage AT24C16 of microprocessor module 2-1 chip U19, preserved settings.
According to the user output voltage is set; Microprocessor module 2-1 distinguishes 5 pin of the 4th relay R L4 among the power controlling out-put supply module 2-3,5 pin of the 3rd relay R L3,5 pin of second relay R L2,5 pin of first relay R L1 through 13 pin (OUT4), 14 pin (OUT3), 15 pin (OUT2), 16 pin (OUT1) of Darlington transistor ULN2003L chip U13; Select the output winding of power transformer by four relay R L1, RL2, RL3 and the RL4 of power output power supply module 2-3; The principle of selecting is to supply power to be higher than the big 2V of output voltage is set; The voltage of four output of power transformer winding output is respectively AC2V, AC4V, AC8V, AC16V; Winding can be connected by end series arrangement of the same name.Output voltage values, output current value that microprocessor module 2-1 is provided with according to the user again; Calculate corresponding DA conversion input value; Through 24 pin of LPC1765FBD100 chip U10 (4 pin of the DA converter AD5623 chip U14 among the control D/A modular converter 2-5 of P0 [28]/SCL0/USB_SCL) (/LDAC); Start the DA conversion; (P0 [29]/USB_D+) is through 5 pin (/LCR) the control DAC register zero clearing of AD5623 chip U14 for 29 pin of LPC1765FBD100 chip U10; (P0 [30]/USB_D) is to 6 pin of AD5623 chip U14 (/SYNC) output synchronizing signal for 30 pin of LPC1765FBD100 chip U10; (P0 [15]/TXD1/SCK0/SCK) 7 pin (SCLK) to AD5623 chip U14 send the serial input clock to 62 pin of LPC1765FBD100 chip U10; (P0 [18]/DCD1/MOSI0/MOSI) is to 8 pin (DIN) the output serial data of AD5623 chip U14, and 12 pin (VREFP) of the LPC1765FBD100 chip U10 of 10 pin (VREF) of AD5623 chip U14 in microprocessor module 2-1 obtain the conversion reference voltage for 60 pin of LPC1765FBD100 chip U10.After AD5623 chip U14 accomplishes the DA conversion; 1 pin (VoutA) through AD5623 chip U14 outputs to resistance R 25 other ends among the current/voltage adjusting module 2-4; Accomplish the setting of output voltage; 2 pin (VoutB) through AD5623 chip U14 output to resistance R 44 other ends among the current/voltage adjusting module 2-4; Accomplish the setting of output current, (1 pin of first triode Q6 of P2 [11]/EINT1/I2STX_CLK) out-put supply start signal (ON/OFF) in the current/voltage adjusting module 2-4 is also opened Q6 to 52 pin of the LPC1765FBD100 chip U10 among the microprocessor module 2-1, drives first light idol TLP521-1 chip U6 work; Be about to electric power starting, aging power initiation work.
Wherein, output is used as differential amplifier with the U4A of first operational amplifier TLE2082ID chip of current/voltage adjusting module 2-4, and the U4B of first operational amplifier TLE2082ID chip constitutes voltage control loop jointly with adjusting comparer; Output is used as differential amplifier with the U7A of second operational amplifier TLE2082ID chip of current/voltage adjusting module 2-4, and the U7B of second operational amplifier TLE2082ID chip constitutes current control loop jointly with adjusting comparer.Set voltage signal DA-V is sent to 5 pin of first operational amplifier TLE2082ID chip U4B through resistance R 25, R24; Compare with the 6 pin signals of TLE2082ID chip U4B; The output of 7 pin of TLE2082ID chip U4B is after the 4th triode Q3 and the 5th triode Q4 amplification; Adjust the working point of first power field effect pipe Q1, second power field effect pipe Q2, promptly adjust power supply and export the output valve on 2 pin of OUT interface J2, this value is sent to 3 pin of first operational amplifier TLE2082ID chip U4A through resistance R 6, R15; Carry out the difference amplification with the 2 pin signals of TLE2082ID chip U4A; 6 pin that are sent to TLE2082ID chip U4B through R19 are exported in the difference amplification, feed back to 2 pin of TLE2082ID chip U4A simultaneously through R23, R22, and constantly adjustment is exported up to voltage and reached setting value.Set current signal DA-A is sent to 5 pin of second operational amplifier TLE2082ID chip U7B through resistance R 44, R42; Compare with the 6 pin signals of TLE2082ID chip U7B; The output of 7 pin of TLE2082ID chip U7B is after second triode Q7 and the 3rd triode Q8 amplification; Adjust the working point of first power field effect pipe Q1, second power field effect pipe Q2, promptly adjust power supply and export the output valve on 2 pin of OUT interface J2, this value is sent to 2 pin of second operational amplifier TLE2082ID chip U7A through resistance R 41; Carry out the difference amplification with the 3 pin signals of TLE2082ID chip U4A; 6 pin that are sent to TLE2082ID chip U7B through R39 are exported in the difference amplification, feed back to 2 pin of TLE2082ID chip U7A simultaneously through R45, R46, and constantly adjustment is exported up to electric current and reached setting value.
When the 7 pin output voltages of first operational amplifier TLE2082ID chip U4B among the current/voltage adjusting module 2-4 are lower than the 7 pin output voltages of second operational amplifier TLE2082ID chip U7B; Power work is at constant voltage mode, and power supply is in the overcurrent protection state; When the 7 pin output voltages of first operational amplifier TLE2082ID chip U4B among the current/voltage adjusting module 2-4 are higher than the 7 pin output voltages of second operational amplifier TLE2082ID chip U7B; Power work is at constant current mode, and power supply is in the overvoltage protection state.
The magnitude of voltage AD-V of 1 pin output valve after resistance R 26 of first operational amplifier TLE2082ID chip U4B delivers to the AD sampling of 9 pin (P0 [23]/AD0 [0]/I2SRX_CLK/CAP3 [0]) the realization output voltage of the LPC1765FBD100 chip U10 among the microprocessor module 2-1 among the current/voltage adjusting module 2-4; Sampled value is delivered to first 4 light-emitting diode display SM1 of LED display module 2-8 through calculating, shows output voltage.The magnitude of voltage AD-A of 1 pin output valve after resistance R 47 of second operational amplifier TLE2082ID chip U7B delivers to the AD sampling of 8 pin (P0 [24]/AD0 [1]/I2SRX_WS/CAP3 [1]) the realization output current of the LPC1765FBD100 chip U10 among the microprocessor module 2-1 among the current/voltage adjusting module 2-4; Sampled value is delivered to second 4 light-emitting diode display SM2 of LED display module 2-8 through calculating, shows output current.
In addition; After power supply output is opened; The temperature of first power field effect pipe Q1 and second power field effect pipe Q2 among the real-time monitoring current of the temperature detection of system and alarm module 2-6/voltage regulator module 2-4; When temperature surpasses 55 ℃; 73 pin of LPC1765FBD100 chip among the microprocessor module 2-1 (P2 [2]/PWM1 [3]/CTS1/TRACEDATA [3]) output to input end 1 pin of phase inverter SN74HC14D chip, and are reverse after output terminal 2 pin of SN74HC14D chip output to Darlington transistor ULN2003L chip 5 pin (IN5), 6 pin (IN6) and 7 pin (IN7), output to 3 pin of fan FAN interface through 10 pin (OUT7), 11 pin (OUT6), 12 pin (OUT5) of ULN2003L chip; The drive control signal of fan is provided, opens radiator fan; When temperature above 75 ℃; (P4 [28]/RX_MCLK/MAT2 [0]/TXD3) output hummer control model BEEP is to an end of temperature detection and alarm module 2-6 resistance R 60, and the control hummer sends buzzing and reports to the police for 82 pin of LPC1765FBD100 chip among the microprocessor module 2-1; When temperature above 85 ℃; (1 pin of first triode Q6 of P2 [11]/EINT1/I2STX_CLK) out-put supply shutdown signal (ON/OFF) in the current/voltage adjusting module 2-4 is also closed Q6 to 52 pin of LPC1765FBD100 chip U10 among the microprocessor module 2-1, i.e. powered-down output.
The present invention can be according to different aging test schemes; Issue through serial ports by PC order is set, be provided with and leave electric current, magnitude of voltage, realize the pulse output of current stabilization output or different frequency; Can adjust dutycycle; And having functions such as timing, power down protection, warning, aging data can upload to PC through serial ports and preserve, analyze, handle and generate corresponding report etc., and can select dissimilar serial ports as required.

Claims (1)

1. program control LED ageing test apparatus comprises PC, program control aging power supply and aging frock clamp that order interconnects, it is characterized in that:
Said program control aging power supply comprises microprocessor module, device working power module, power output power supply module, current/voltage adjusting module, D/A modular converter, temperature detection and alarm module, Keysheet module, LED display module, 485 communication modules and 232 communication modules;
Said microprocessor module comprises that central processing unit LPC1765FBD100 chip, storage AT24C16 chip, reference power supply REF3125AIDBZ chip, electrification reset SP708SEN chip, Darlington transistor ULN2003L chip, phase inverter SN74HC14D chip, crystal oscillator, toggle switch, JTAG emulation interface, first keyboard of NXP semiconductors company show DISPLAY interface and fan FAN interface; Wherein, 58 pin of LPC1765FBD100 chip are connected to 6 pin of storage AT24C16 chip, and for it provides work clock, 59 pin of LPC1765FBD100 chip are connected to 5 pin of AT24C16 chip, realize serial input, the output of data; 12 pin of LPC1765FBD100 chip are connected with 2 pin of reference power supply REF3125AIDBZ chip, and 15 pin of LPC1765FBD100 chip are connected with 3 pin of REF3125AIDBZ chip, obtain the required reference power source of built-in AD conversion; 17 pin of LPC1765FBD100 chip are connected to 7 pin of electrification reset SP708SEN chip, obtain the electrification reset level; The signal of 73 pin of LPC1765FBD100 chip outputs to input end 1 pin of phase inverter SN74HC14D chip; It is reverse after output terminal 2 pin of SN74HC14D chip output to Darlington transistor ULN2003L chip 5 pin, 6 pin and 7 pin; Output to 3 pin of fan FAN interface through 10 pin, 11 pin, 12 pin of ULN2003L chip, the drive control signal of fan is provided; The signal of 70 pin of LPC1765FBD100 chip outputs to 3 pin of SN74HC14D chip; It is reverse after output terminal 4 pin of SN74HC14D chip output to 4 pin of ULN2003L chip; The signal of 69 pin of LPC1765FBD100 chip outputs to 5 pin of SN74HC14D chip; It is reverse after output terminal 6 pin of SN74HC14D chip output to 3 pin of ULN2003L chip; The signal of 68 pin of LPC1765FBD100 chip outputs to 9 pin of SN74HC14D chip; It is reverse after output terminal 8 pin of SN74HC14D chip output to 2 pin of ULN2003L chip; The signal of 67 pin of LPC1765FBD100 chip outputs to 11 pin of SN74HC14D chip; Reverse after output terminal 10 pin of SN74HC14D chip output to 1 pin of ULN2003L chip, 13 pin of ULN2003L chip U13,14 pin, 15 pin, 16 pin output to 5 pin of 5 pin of the 4th relay R L4 in the power output power supply module, 5 pin of the 3rd relay R L3, second relay R L2,5 pin of first relay R L1, the switching of pilot relay respectively; 52 pin of LPC1765FBD100 chip output to 1 pin of first triode Q6 in the current/voltage adjusting module, the break-make of the triode Q6 of control; Crystal oscillator Y2 is through 22 pin and 23 pin of LPC1765FBD100 chip, for system provides work clock; Toggle switch SW1 provides system's required address coding through 95 pin, 94 pin, 93 pin, 92 pin of LPC1765FBD100 chip; 1 pin of LPC1765FBD100 chip, 2 pin, 3 pin, 4 pin, 5 pin, 100 pin, 17 pin output to JTAG emulation interface JP1, to realize the artificial debugging of system; 48 pin of LPC1765FBD100 chip, 49 pin, 81 pin, 80 pin, 79 pin, 78 pin, 77 pin, 76 pin show DISPLAY interface J1 through show second keyboard that DISPLAY interface J7 is connected in the Keysheet module to first keyboard, with Keysheet module, LED display module interactive information; 27 pin of LPC1765FBD100 chip receive the temperature information in temperature detection and the alarm module, and 82 pin of LPC1765FBD100 chip output to temperature detection and alarm module, the control buzzer warning; 4 pin of the DA converter AD5623 chip of 24 pin of LPC1765FBD100 chip in the D/A modular converter start the DA conversion; 29 pin of LPC1765FBD100 chip are through the 5 foot control system DAC register zero clearings of AD5623 chip U14; 30 pin of LPC1765FBD100 chip are to the 6 pin output synchronizing signal of AD5623 chip U14; 62 pin of LPC1765FBD100 chip go out the serial input clock to 7 human hair combing wastes of AD5623 chip U14, and 60 pin of LPC1765FBD100 chip are to the 8 pin output serial data of AD5623 chip; The electric current of LPC1765FBD100 chip in 8 pin received current/voltage regulator modules adopts information, and the voltage of LPC1765FBD100 chip in 9 pin received current/voltage regulator modules adopts information; The LPC1765FBD100 chip is through the serial communication of 74 pin, 75 pin, 485 communication modules, and the LPC1765FBD100 chip is through the serial communication of 98 pin, the realization of 99 pin and 232 communication modules;
Said device working power module comprises first transformer TRANSFORMER input interface, rectifier bridge heap 2KBP10 chip, power supply LM7812 chip, power supply MC7815 chip, power supply LM7915 chip, power supply MC78L05 chip and power supply SPX1117M-3.3 chip; By chip LM7812 provide+12V, chip MC7815 provide+15V, chip LM7915 provide-15V, chip MC78L05 provide+5V, chip SPX1117M-3.3 provide+3.3V is the VCC power supply, is respectively microprocessor module, current/voltage adjusting module, D/A modular converter, temperature detection and alarm module, Keysheet module, LED display module, 485 communication modules and the power supply of 232 communication modules;
Said power output power supply module comprises second transformer TRANSFORMER input interface, first relay, second relay, the 3rd relay, the 4th relay, rectifier bridge heap KBJ2510 chip, and the system power out-put supply is provided;
Said current/voltage adjusting module comprises first power field effect pipe, second power field effect pipe, first operational amplifier TLE2082ID chip, second operational amplifier TLE2082ID chip, power supply output OUT interface, light idol TLP521-1 chip, first triode, second triode, the 3rd triode, the 4th triode, the 5th triode; Wherein, The startup of first triode and light idol TLP521-1 chip controls current/voltage adjusting module; Second triode, the 3rd triode and second operational amplifier TLE2082ID chip constitute voltage close loop control; The 4th triode, the 5th triode and first operational amplifier TLE2082ID chip constitute current closed-loop control; First power field effect pipe and second power field effect pipe are realized power amplification, export the OUT interface to the load output voltage through power supply;
Said D/A modular converter comprises DA converter AD5623 chip; Wherein, 1 pin of AD5623 chip outputs to the current/voltage adjusting module, accomplishes the setting of output voltage, and 2 pin output current/voltage regulator modules of AD5623 chip are accomplished the setting of output current;
Said temperature detection and alarm module comprise temperature sensor T_SENSOR interface and hummer; Wherein, the power tube temperature in the real-time monitoring current/voltage regulator module of temperature sensor when temperature over-range, is sent buzzing and is reported to the police;
Said Keysheet module comprises that first shift register SN74HC595D chip, second shift register SN74HC595D chip, scrambler EC11 chip, 4 LED lights and second keyboard show the DISPLAY interface; Realize that button value reads, keypress function is selected and press key function reminding;
Said LED display module comprises the 3rd shift register SN74HC595D chip, the 4th shift register SN74HC595D chip, first 4 light-emitting diode displays and second 4 light-emitting diode display; The demonstration of the voltage/current value of realization output, alarm message reminding etc.;
Said 485 communication modules comprise first light idol 6N137 chip, second light idol 6N137 chip and 485 transmitter-receiver SP485EEN chips; Realize 485 communications of PC, program control aging power supply;
Said 232 communication modules comprise the 3rd light idol 6N137 chip, the 4th light idol 6N137 chip and 232 transmitter-receiver SP3232E chips; Realize 232 communications of PC, program control aging power supply.
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