Published:2011/4/18 4:33:00 Author:Jessie | Keyword: injector
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Published:2011/4/18 4:32:00 Author:Jessie | Keyword: oxygen sensors, waste gas recirculation, power systems, control unit
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Published:2011/4/18 4:34:00 Author:Jessie | Keyword: idle speed control, oil level switches, oil pressure indicator light
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Published:2011/4/18 4:36:00 Author:Jessie
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Published:2011/4/18 4:38:00 Author:Jessie | Keyword: The battery monitoring, high-voltage charging
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Published:2011/4/18 4:30:00 Author:Jessie | Keyword: Bi-directional thyristor, gate limit flow, resistance, regulating
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Published:2011/4/18 2:31:00 Author:Jessie | Keyword: Pressure test, digital pressure signal disposal device
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Published:2011/4/18 4:27:00 Author:Jessie | Keyword: Isolation analog
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Published:2011/4/14 20:35:00 Author:Jessie | Keyword: 4302 Division
As shownis the division circuit composed by integrated block 4302, the inputs are V1 and V2, its output Vo is: Vo=10V1/V2. The input signal range: 0.03V≤V1≤10V, 0.03V≤V2≤10V. The circuit's typical error is ±25mV at 25℃, the max error is ±50mV, and output voltage accuracy affected by temperature, its temperature coefficient is ±1mV/C, output disorders voltage is 士10mV at 25℃, temperature coefficient is ±lmV/C. V1, V2's bandwidth in small signal is 500 kHzin small signal (-3dB), full range output is 60kHz. The adjustment method ofR1, R2 and R3 is: when V1=V2=+10V, adjust R1 to make the output Vo = +10V; When Vl=V2=+0.1V, adjust R2 to make output Vo=+10V; When V1=+0.01V, V2=+0.1V, adjust R3 to make Vo=+1V. So can adjust again and againfor a few times. (View)
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Published:2011/4/12 3:41:00 Author:Jessie | Keyword: Pyroelectric infrared, sensor induction control
This type of control circuit mainly consists of pyroelectric infrared sensor and amplifying circuit. Pyroelectric infrared sensor isa new type of sensitive components, it is made from high thermoelectric coefficient materialswith impedance matching mosfet and filter piece. Pyroelectric infrared sensor is able to detect infrared ray radiation human issued in contactless manner, and translate it into electrical signal to send out.
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Published:2011/4/12 3:38:00 Author:Jessie | Keyword: discrete transistor, current control
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Published:2011/4/12 3:37:00 Author:Jessie | Keyword: Insulation DC voltage detected
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Published:2011/4/12 3:37:00 Author:Jessie | Keyword: typical applications
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Published:2011/4/11 23:02:00 Author:Jessie | Keyword: Small and medium-sized, DC motor structure
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Published:2011/4/11 23:54:00 Author:Jessie | Keyword: Simple, combustible gas, alarm
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Published:2011/4/18 2:58:00 Author:Ecco | Keyword: Sanhe , Songshi , 15W , vibrating, massage stick
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Published:2011/4/18 2:27:00 Author:Ecco | Keyword: Sine wave generator , inverter
The sine wave generator composed of inverter is shown as the chart. The circuit could get high stable sine wave in more than a few MHz. In the figure, A1 and the crystal oscillator form a oscillating circuit, the output of A1 becomes sine wave signal after passing the buffer A2. In the circuit, A1 is linear amplifier, the whole circuit is in amplifying state. As the characteristics of the crystal oscillator are different, the output frequency and voltage are different, and R2 is used to adjust waveform. For getting ccurate oscillation frequency, it can connect a variable capacitor on two ports of capacitor C1 in parallel. Oscillation frequency of the circuit is decided by crystal oscillator, it can change the output signal frequency.
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Published:2011/4/18 4:39:00 Author:Ecco | Keyword: CMOS , 555 , equivalent function
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Published:2011/4/18 2:46:00 Author:Ecco | Keyword: Haier , microwave
Haier M0-2270M1/M0-2270M2 microwave circuit. Note: The circuit is in the state when the door is open and the timer is not working.
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Published:2011/4/18 2:54:00 Author:Ecco | Keyword: Double digital display, amblyopia , therapeutic apparatus , children
Double digital display amblyopia therapeutic apparatus circuit for children is as below: (a) is the whole circuit; (b) is the counter circuit.
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