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Index 4

Sail anti-theft system circuit diagram

Published:2014/4/3 20:38:00 Author:lynne | Keyword: Sail anti-theft system circuit diagram

Sail anti-theft system circuit diagram shown as follow: (View)

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Sail airbag system schematic

Published:2014/4/2 21:18:00 Author:lynne | Keyword: Sail airbag system schematic

Sail airbag system schematic as shown: (View)

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F-V conversion circuit schematic

Published:2014/4/2 21:12:00 Author:lynne | Keyword: F-V conversion circuit schematic

F-V conversion circuit schematic shown as follow: (View)

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The LM35D interface circuit diagram

Published:2014/4/2 21:09:00 Author:lynne | Keyword: The LM35D interface circuit diagram,

The LM35D interface circuit diagram
The interface circuit LM35D LM35D sensitivity of 10mV / ℃, it is up to 1V at 100 ℃ output. As the SF-10 instrument amplifier maximum input voltage of 240mV, so the higher the maximum temperature of the output signal LM35D to be attenuated. Further, LM35D voltage signal is output to ground, it can not directly access the output signal of the two inputs of the SF-10B (the ground pin ⑥, a single power amplifier device can not work), which requires the output voltage decays , and after the transfer circuit voltage to the interface with the SF-10B, as shown in FIG. (View)

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Telecom filter circuit schematic

Published:2014/4/2 21:20:00 Author:lynne | Keyword: Telecom filter circuit schematic

Telecom filter circuit schematic shown as follow: (View)

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A voice control recording circuit diagram

Published:2014/4/1 21:26:00 Author:lynne | Keyword: A voice control recording circuit diagram

A voice control recording circuit diagram
When a sound wave compression electret microphone MIC, MIC can output a weak audio signal fed from the NAND gate F1, F2, F3 and R3, R4, R5 constitute the three continuous linear amplification of the amplifier circuit , if consider peak waveform distortion , the output signal amplitude F3 has been large enough , after this signal is coupled through C4 by D1, D2 rectifier get unipolar pulses C5 charging. VC5 soon more than 1/2VDD, the output of NAND gate F4 0, F5 output is 1 , high charge to C8, VC8 also soon be greater than 1/2VDD, F6 output is 0 , the transistor T saturated conduction , SCR is trigger , so 220V mains supply via socket CZ to the recorder , recording starts ; If the sound disappears, the C5 voltage can not be maintained , VC5 quickly dropped to zero. Similarly , C8 only slowly discharge to R8, VC8 about three seconds after the drop to 0 , then , SCR deadline , tape recorders recording aborted ; so, automatic recording control recording ( if necessary delay longer available appropriate to increase the capacity of C8 ) . This control circuit is not only used for automatic recording recorder can also be extended to other appliances require intermittent voice, interested friends can do it. If the sensitivity is not satisfied, it can be in F1 before adding a transistor amplifier. (View)

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Signal repeater circuit diagram

Published:2014/4/1 21:16:00 Author:lynne | Keyword: Signal repeater circuit diagram

Signal repeater circuit diagram as shown: (View)

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Transmission of data coupling circuit diagram

Published:2014/3/31 21:27:00 Author:lynne | Keyword: Transmission of data coupling circuit diagram

Transmission of data coupling circuit diagram shown as follow: (View)

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FAW Hongqi buzzer system schematics

Published:2014/3/31 21:30:00 Author:lynne | Keyword: FAW Hongqi buzzer system schematics

FAW Hongqi buzzer system schematic as shown: (View)

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Noise generator circuit schematics

Published:2014/3/30 21:30:00 Author:lynne | Keyword: Noise generator circuit schematics

Noise generator circuit schematics shown as follow: (View)

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Speech filter circuit diagram

Published:2014/3/30 21:24:00 Author:lynne | Keyword: Speech filter circuit diagram

Speech filter circuit diagram as shown: (View)

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Signal generator circuit diagram

Published:2014/3/30 21:21:00 Author:lynne | Keyword: Signal generator circuit diagram

Signal generator circuit diagram as shown: (View)

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Eight AD7416 parallel circuit diagram

Published:2014/3/26 21:43:00 Author:lynne | Keyword: Eight AD7416 parallel circuit diagram, AD7416

Eight AD7416 parallel circuit diagram
D7416 serial address low 3 can be set by the user, allowing a choice from 1001000 to 1001111 of eight addresses. 8 illustrates the AD7416 has received a serial bus system, their OTI output line to form a common interrupt request lines. (View)

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Hardware schematic circuit

Published:2014/3/26 21:41:00 Author:lynne | Keyword: Hardware schematic circuit

Hardware schematic circuit
Hardware schematic is shown in Figure. This is an evaluation circuit, which can install three digital temperature sensor: AD7414, AD7416, AD7814, the software displays each device in turn measured ambient temperature and OTI analog outputs with LED indication. Some explanations are now as follows: (1) address of each device is different, and SDA, DOUT leads can be connected directly; AD7414, OTI output line (active low), now overrun alarm indication for the AD7416. (2) due to the inertia of the temperature coefficient of the larger, can be a simple and effective method of moving average, median method, low-pass filtering method for software filtering. In practical applications, the side of the sample side, the average of the average value as the temperature samples. Sampling frequency of 8 to 16 times can be. (3) The system uses LCM103 LCD module for temperature display, X25045 for power-on reset and watchdog with. (View)

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Four packages of AS300 circuit board

Published:2014/3/25 21:38:00 Author:lynne | Keyword: Four packages of AS300 circuit board, AS300

Four packages of AS300 circuit board
AS300 four packages shown (top view), each pin functions: GND (S) selectable detection feet ground, and the substrate GND GND (F) is not connected. GND (F): signal ground and the circuit substrate grounding pin. VTEMP (F): output pin. The pin voltage is proportional to temperature. When 27 ℃, VTEMP = 3V, VTEMP with increasing temperature at a rate of 10mV / ℃ increases. VTEMP (S): selectable sensor VTEMP the output, use only on 8LSOIC package. (View)

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Digital pressure gauge based on MPX2100 circuit diagram

Published:2014/3/25 21:34:00 Author:lynne | Keyword: Digital pressure gauge based on MPX2100 circuit diagram, MPX2100

Digital pressure gauge based on MPX2100 circuit diagram
Digital pressure gauge based MPX2100 Digital pressure gauge MPX2100 configured as shown. MPX2100 operating voltage of 12V, the pressure between the sensor signal output 4 feet and 2 feet to IC1, IC2 amplification, amplifier gain is 1 +40 / RP1, IC1, IC2 connected to non-inverting input impedance state, the instrument can be obtained required high input impedance amplifier; IC3 is a unity gain differential amplifier, which can achieve high CMRR, IC4 and RP2 voltage divider circuit zeroing circuitry, RP1 used to adjust the gain of the amplifier circuit to complete the full digital display of pressure calibration range. IC3 output voltage to the A / D converter analog input voltage terminal IC5 (31 feet), the digital conversion by IC5 to drive LED display size of the pressure. (View)