Published:2011/7/19 21:51:00 Author:Sue | Keyword: Fuel Injection, Hyundai Sonata, 4-Cylinder
The picture shows the fuel injection system circuit of Hyundai Sonata with 4-cylinder engine. (View)
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Published:2009/6/24 1:55:00 Author:May
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Published:2011/7/19 21:51:00 Author:Sue | Keyword: Fuel Injection, Hyundai Sonata, 4-Cylinder
The picture shows the fuel injection system circuit of Hyundai Sonata with 4-cylinder engine. (View)
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Published:2009/6/24 1:55:00 Author:May
With high-voltage regulators, powering on the IC through the drive resistor for the pass transistors can become quite inefficient. This is avoided with the circuit shown. The supply current for the IC is derived from Q1. This allows R4 to be increased by an order of magnitude without affecting the dropout voltage.Selection of the output transistors will depend on voltage requirements. For output voltages above 200 V, it might be more economical to cascade lower-voltage transistors. (View)
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Published:2011/7/19 21:53:00 Author:Sue | Keyword: Multivibrator, Photocoupler
As seen in the figure 1, photocoupler composes the simplest multivibrator. After the power is on, as capacitor C's voltage can't change abruptly and resistor R's resistancevalue is larger than RL, so the power voltage Ec is mainly put on R. F's level is very low and LED is disconnected. As the capacitor's charging voltage is becoming larger and larger, F's level is becoming higher and higher. When it reaches a certain value, the LED will be connected and will be illuminated. The photistor will be connected. The output voltage will jump and become close to the power voltage. (View)
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Published:2009/6/24 1:54:00 Author:May
Used for digital control of musical instruments, this transmitter converts the digital data signals to equivalent optical signals for fiberoptic cable interface. Optocoupler IC1 provides isolation, and drives IC2-a and -b and T1, and finally provides a cable driver LED (SFH750). (View)
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Published:2009/6/24 1:53:00 Author:May
This tripler is useful for low-current and high-voltage applications.The capacitors can be 0.001-μF,3- to 6-kV discs,and the diode's 3-kV units,or three each IN4007 in series. (View)
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Published:2009/6/24 1:53:00 Author:May
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Published:2009/6/24 1:52:00 Author:May
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Published:2009/6/24 1:50:00 Author:May
This device is essentially a high-voltage variable-frequency ac supply.A CD4049 IC multivibrator circuit drives a darlington connected transistor pair,which drives TR2,an HV transformer. (View)
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Published:2011/7/12 2:02:00 Author:Sue | Keyword: Simulator
a) EC3 simulator is the latest series of MCU, and it uses the core technology of Silabs company.
b) It can realise functions as single step, hardware breakpoint, continuous single step, start and stop, modification and inspection of container and register, download of programs and encryption.
c) EC3 has the same functions as SILABS company's EC3.
It is the only domestic product that uses core technology of the origin company, so please recognize out signal C8015F Network . (View)
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Published:2009/6/24 1:48:00 Author:May
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Published:2009/6/24 1:47:00 Author:May
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Published:2009/6/24 1:46:00 Author:May
The output current issensed across R8, This is delivered to the current-limit arrtplifier through R7, across which the foldback potential is developed by R6 with a threshold determined by D4. The values given limit the peak power below 20 W and shut off the pass transistors when the voltage across them exceeds 310 V. With unregulated input voltages above this value, start-up is initiated solely by the current through R5. Q4 is added to provide some control on current before A2 has time to react.The circuit is stable with an output capacitor greater than about 2 μF. Spurious oscillations in current limit are suppressed by C2 and R4, while a strange, latch-mode oscillation coming out of current limit is killed with C1 and R1. (View)
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Published:2009/6/24 1:43:00 Author:May
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Published:2009/6/24 1:43:00 Author:May
T1 is a 120-V to 1000-V step-up 60-Hz transformer. C1, C2, C3, C4 and D2 through D5 form a voltage quadruplet. The initial voltage is 4 to 5 kV, which drops when the laser tube fires. (View)
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Published:2009/6/24 1:42:00 Author:May
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Published:2011/7/23 9:27:00 Author:John | Keyword: waveform generator
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Published:2011/7/23 9:27:00 Author:John | Keyword: Single precision function generator, application circuit
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Published:2011/7/23 9:28:00 Author:John | Keyword: second-pulse signal generator
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