Published:2011/3/23 3:43:00 Author:Joan | Keyword: FeiDa , FM / AM radio
Above is FeiDa PR-611C FM / AM radio schematic. (View)
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Published:2011/3/23 3:44:00 Author:Joan | Keyword: Heater
Above is Heater circuit. (View)
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Published:2011/3/23 3:47:00 Author:Joan | Keyword: FuDian , UPS , power driver board
Above is FuDian 710 UPS power driver board circuit. (View)
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Published:2011/3/23 3:22:00 Author:Joan | Keyword: UPS Power Driver Board, FuDian-Santak
Above is FuDian-Santak 710 UPS Power Driver Board Schematic. (View)
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Published:2011/3/21 1:31:00 Author:Joan | Keyword: Four color lights, power supply, natural sound
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Published:2011/3/23 4:50:00 Author:Joan | Keyword: Common base , amplifier , dynamic analysis
Below is Common base amplifier dynamic analysis circuit.
AC small signal equivalent circuit.
Au is comparatively large;ri is comparatively small;Ro is comparatively large. (View)
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Published:2011/3/23 4:52:00 Author:Joan | Keyword: Common base , amplifier , static analysis
Below is Common base amplifier static analysis circuit diagram.
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Published:2011/3/23 4:54:00 Author:Joan | Keyword: Common base , amplifier
Below is Common base amplifier circuit diagram.
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Published:2011/3/21 1:52:00 Author:Joan | Keyword: Charger
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Published:2011/3/23 2:52:00 Author:Joan | Keyword: Voice control , switch
Below is the Voice control switch circuit.
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Published:2011/3/21 1:27:00 Author:Joan | Keyword: RS232-TTL-RS485, interface converter
The above figure is RS232-TTL-RS485 interface converter circuit. (View)
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Published:2011/3/23 1:18:00 Author:Joan | Keyword: Jetta , Air condition switch , blower , 2V motor
Above is Jetta Air condition switch, blower, 2V motor circuit.
A-BatteryE9-Blower switchE33-outside temperature switchE35-Air condition switchF73-Cooling pipe dual pressure switch J32-Air condition relayV2-BlowerJ220-Engine ECUE31-Evaporator temperature switchT10a-10-hole plug, black, in the top of the relay boxT10b-10-hole plug, purple, in the top of the relay boxT10c-10-hole plug, orange, in the top of the relay box T5a-5-hole connector, white, connect to blowerP-Main fuse box, located above the battery5-Connect point within the air condition wire harness (View)
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Published:2011/3/23 1:33:00 Author:Joan | Keyword: Voice-activated
The figure is Voice-activated circuit diagram (View)
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Published:2011/3/23 1:31:00 Author:Joan | Keyword: hand dryer
The figure is the self-made fast hand dryer circuit diagram 1.
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Published:2011/3/21 1:13:00 Author:Joan | Keyword: precision , temperature measurement
LMl35 series has equipped with outside correct terminal, which can easily correct measurement error and effectively eliminate the error caused by manufacturing process by simple correction method. As shown in Figure 4, when the temperature is 25 ℃, the adjustment potentiometer Rw changes the calibration terminal bias, until the sensor output voltage turns to 2.982V measured by a digital voltmeter in 20V output range. After calibration, the circuit's measurement error is less than 1 ℃ within the 0 to100C ℃ range. (View)
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Published:2011/3/21 1:14:00 Author:Joan | Keyword: Jetta , electromagnetic clutch , pressure switch, radiator fan , 5V motor
A-Battery F23-Refrigerant high orlow pressure switch E32-Cooling temperature switch E33-External temperature switch F18-Radiator fan thermal switch V7-Radiator fan J300-Motor ECU N25- Air condition electromagnetic clutch 7-Connecting point incar body wireharness (View)
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Published:2011/3/21 1:13:00 Author:Joan | Keyword: Jetta , anti-theft system
The figure is Jetta anti-theft systemcircuit.ws=whitesw=blackro=redbr=browngn=greenbl=bluegr=grayli=purplege=yellow
A-Battery J301-Anti-theft ECUJ220-Engine Electronic Control UnitL31-Anti-theft indicatorT10c-10-hole plug, orange, in the top of the relay boxTV-Self-diagnostic interfaceP-Main fuse box, located above the battery*-For 2V EFI engine43-Ground point, At the relay box next to the body7-Connection Point, Within the body harness (View)
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Published:2011/3/21 0:54:00 Author:Joan | Keyword: Jetta , central locking
The figure is Jetta central locking diagram.
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Published:2011/3/21 0:54:00 Author:Joan | Keyword: power, boot system , Jetta
Above is Jetta power and boot system schematic. (View)
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Published:2011/3/21 0:52:00 Author:Joan | Keyword: Ni-Cd battery, fast charging
The figure is a safe and reliable Ni-Cd battery fast charging circuit. It detects the completion of battery chargeusing Ni-Cd battery case temperature change. In general, it has been already charge 80% of rated capacity when the rechargeable battery temperature rises to 5 ℃. ST1 is used to detect the ambient temperature, ST2 thermal coupled the rechargeable battery are used to detect the battery temperature. The offset terminal of the temperature sensor adjust ST1 output voltage 50mV higher than that of ST2. When the battery temperature exceeds 5 ℃ of the ambient temperature, the comparator LM308 output goes low, LM317change from constant current source state to the voltage source state, the output voltage is only about 2V, Power supply continues to charge the battery only through the R by 50mA small current. The method can save time and will not overcharge.
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