Published:2011/7/22 20:27:00 Author:qqtang | Keyword: textile machine, weft feelers
Here is to introduce the textile machine weft feelers circuit which is in the photoelectric control way, it can be the repairing replacement of the of imported injection shuttleless textile machine weft feelers.The working principle of the circuitThe weft feeler consists of the photoelectric signal detection amplifier circuit and LED drive circuit, see as figure 8-133. The photoelectric signal detection amplifier circuit consists of the infrared LED V1 and V2, resistors of R2-R5 and R7-R9, potentiometer RP, capacitor C1 and NI in op-amp circuit IC(N1 and N2).
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Published:2011/7/15 5:37:00 Author:Sue | Keyword: Nissan, Power Supply
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Published:2011/7/15 5:39:00 Author:Sue | Keyword: Nissan, Power Supply
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Published:2011/7/15 5:24:00 Author:Sue | Keyword: Nissan, Power Supply
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Published:2011/7/22 7:47:00 Author:Sue | Keyword: Touch, Multi-channel, Electric Switch
The touch electric switch has simple structure, reliable working state, integrated circuit and low cost. It has 20 channels to choose from. As seen in the figure, the circuituses a double digit monitor for channel display. The circuit consists of touch signal input circuit, control pulse forming circuit, channel selection circuit, channel coding and display circuit. (View)
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Published:2011/7/20 6:09:00 Author:Sue | Keyword: Four-input, Audio Mixer
The picture shows a follower-type four-input audio mixer circuit. The circuit has four inputs. By adjusting the relative values of 470KM input resistor and 470KM feedback resistor, every input and every output will keep a gain of 1. (View)
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Published:2011/7/18 6:50:00 Author:Sue | Keyword: Microphone, Low Noise, Audio, Preamplifier
As seen in the figure, MC2830 will compose audio circuit. Traditional audio circuit cannot tell the difference between audio signal and noise signal. When it is very noisy, it is always the switch that make the noise. To avoid such disadvantage, we use different audio and noise wave forms. Audio wave form always has wide rangeability while noise wave form is more stable. Audio activation is decided by R6. If R6 changes from 14K to 0.7K, audio activation's sensibilitywill become lower. (View)
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Published:2011/7/27 1:25:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/14 7:20:00 Author:Sue | Keyword: DVD Player, Power
In DVD player power circuit, it is easy for TEA1521 toserve as flyback power.
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Published:2011/7/18 7:54:00 Author:Sue | Keyword: Fuel Injection, System, Hyundai Sonata, 4 Cylinder Engine
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Published:2011/7/27 1:29:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/27 1:28:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/27 1:28:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/18 7:55:00 Author:Sue | Keyword: Fuel Injection, System, Hyundai Sonata, 4 Cylinder, Engine
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Published:2011/7/27 1:26:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/27 1:29:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/20 6:44:00 Author:Sue | Keyword: High-precision, Analog Signal, Isolating Amplifier, Isolating Operational Amplification, Isolating Operational Amplifier
Typical applications:
Direct current/voltage signal's isolation, transformation and amplication.
Industrial site signal's isolation and long-term transportation.
Analog signal's jamming and suppression of ground wire and statistics' isolation and collection.
Instruments and meters and sensor signal's reception and dispatch.
Non electrical quantity signal's conversion.
Power distribution, armarium's isolators.
Functions such as isolation of signal sensor's one-in-one-out, two-in-two-out of analog signal of 4-20mA.
ISO series optoelectronic isolation amplifier uses direct current signal imitation modulation technique. The null point and full scale within the range can be adjusted and set according to the sensor. (View)
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Published:2011/7/27 1:30:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/27 1:31:00 Author:Ecco | Keyword: Computer motherboard
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Published:2011/7/27 1:32:00 Author:Ecco | Keyword: Computer motherboard
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