Published:2011/3/28 2:00:00 Author:Ecco | Keyword: Touch dimmer
Touch dimmer composed of LS7232 is as below:
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Published:2011/3/28 2:02:00 Author:Ecco | Keyword: Duplex communication circuit
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Published:2011/3/28 1:56:00 Author:Ecco | Keyword: Six channel remote
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Published:2011/3/30 3:13:00 Author:Rebekka | Keyword: Rolling massage, Bailing brand
Here is the schematic diagram of the rolling massage Bailing brand circuit:
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Published:2011/3/30 2:26:00 Author:Rebekka | Keyword: One port with the four connectors
Here is the schematic diagram of the one port with the four connectorscircuit:
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Published:2011/3/28 1:51:00 Author:Ecco | Keyword: Four channel remote
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Published:2011/3/30 2:28:00 Author:Rebekka | Keyword: 51 SCM, PC serial port
Here is the schematic diagram of the 51 SCM and PC serial port MAX232 circuit:
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Published:2011/3/28 1:19:00 Author:Ecco | Keyword: sound controlling supply socket , transistor
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Published:2011/3/30 21:19:00 Author:Rebekka | Keyword: application circuit
The shape and the pinout of TDA 2030 is shown as figure(a). The integrated amplifier has 5 feet. It has a simple connection line. It can be connected as OCL circuit and OTL circuit. It is widely used in audio equipments. The internal short circuit protection circuit has overheat protection. The main parameters are: power supply 6~18V, output power 9W, input impedance 5MΩ, voltage gain 30dB, harmonic distortion 0.2%. TDA 2030 typical application circuit diagram is shown as below.
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Published:2011/3/30 2:31:00 Author:Rebekka | Keyword: High input resistance, inverting amplifier
Here is the schematic diagram of the high input resistance inverting amplifier circuit:
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Published:2011/3/30 21:50:00 Author:Ecco | Keyword: crystal triode
The inside circuit diagram of crystal triode EMH15 is as below:
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Published:2011/3/30 21:49:00 Author:Ecco | Keyword: Time exposure
To assure the quality of the photogragh, this device can satisfy the shutterbug to control the time of exposure. It has the advantages of high accuracy in time controlling, having universal function such as time exposure, light-dimmer, pressure regulating and so on. Enlarging bulb or iron, electric blanket and lamp. The electric applianceses, such as electric fan and dynamo. etc. can be connected to the output socket CZ, and the output is controlled by the silicon capacity. For example, the pure resistive load can provide the power with 600 W; capacitive or inductive burden make the output be smaller than 300w.
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Published:2011/3/30 21:50:00 Author:Ecco | Keyword: The interface circuit
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Published:2011/3/30 21:51:00 Author:Ecco | Keyword: The interface circuit
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Published:2011/3/30 21:51:00 Author:Ecco | Keyword: interface circuit
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Published:2011/3/30 21:42:00 Author:Ecco | Keyword: interface, microprocessor
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Published:2011/3/30 21:42:00 Author:Ecco | Keyword: Audi A4, CAN-BUS
The circuit diagram of CAN-BUS of Audi A4 (2) is as below:
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Published:2011/3/30 21:42:00 Author:Ecco | Keyword: Sensitive Oscillator
As shown as below, this oscillator is a type without steady-state harmony which composed of 555, R1, R3, C1 and optics triode VT. The internal resistance is changed with the illumination, and when the light is strong, it presents in low resistivity, when the light is weak, t presents in high resistivity. So the frequency of oscillator changes with the light in the range of 1Hz~6.5kHz. So the oscillator is available to make blind man to explore the way, early dawn report Xiao etc. situation.
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Published:2011/3/30 21:33:00 Author:Ecco | Keyword: Power amplifier
6bm8 6as7 Power amplifier circuit diagram is as below:
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Published:2011/3/30 21:40:00 Author:Ecco | Keyword: Low power consumption, monostable
The circuitry shown as below, it includes a four 2 input port and NOT-gate CD4011 and a CMOS type 555, as a result whether it is inthe timing period of quiescent or high output level, it consumes very low. The portal 3 of CD4011, portal 4 constitute RS trigger. Because the whole circuitry presents in closed cycle, the pulse width is decided by the RC time constant, namely td=the 1.1 R1 C1.
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