Published:2011/9/27 1:50:00 Author:Rebekka | Keyword: IR remote control dimmer light
(a) is infrared emission circuit diagram. NE555 circuit generates a 40kHz pulse which is sent by the infrared emission control SE303 after beingamplified by VT. (b) is remote receiver and infrared dimming circuit composed of the KA2184. LS7232 is an integrated dimming circuit.
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Published:2011/9/26 1:45:00 Author:Rebekka | Keyword: Anti-interference , energy-saving switch
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Published:2011/9/26 21:45:00 Author:Rebekka | Keyword: eight-way remote control circuit
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Published:2011/9/26 2:20:00 Author:Rebekka | Keyword: Pulse dialing, nine-way infrared remote control
Transmitter circuit:
Receiver circuit:
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Published:2011/9/26 22:05:00 Author:Rebekka | Keyword: Bell alarm circuit
SNS-200P1 is the human body pyroelectric infrared alarm bell. SNS-200P1 uses three 5# batteries, portable design is ideal for alarm products. When the function switch isin the OFF position, the power off; In the CHIME position, it can be used for doorbell, when someone approaches, it will make ding-dong sound; In the ALARM position, it can be used as alarm, when some people close to the sound,thethe warning will be issued. The entire circuit is composed of body infrared detection sensor, the body infrared signal processing circuit, alarm audio circuits and audio amplifier circuit. (View)
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Published:2011/9/26 2:16:00 Author:Rebekka | Keyword: Pyroelectric infared detection
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Published:2011/9/26 2:10:00 Author:Rebekka | Keyword: energy-saving lamps
IC1 is four operational amplifiers LM324. Sensor BH is RS03. If you use some other types of sensors, it should have the right design of the amplifier gain support, but it must select two-component type. (View)
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Published:2011/9/27 2:08:00 Author:Rebekka | Keyword: application circuit
HD-03C is a pyroelectric infrared control module. It has a high detection sensitivity, fewer external components. The circuit is simple, easy to use and it can be widely used in automatic switch, automatic alarm control circuit. Figure (a) is the pyroelectric infrared automatic light control circuit composedof HD -03C; Figure (b) is relay output control circuit composed of HD-03C. (View)
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Published:2011/9/27 2:12:00 Author:Rebekka | Keyword: shape , internal circuit
Radio transmitter component FDD-5 and receiver component JDD-5are a pair of FM radio transmitter / receiver modules. The circuit can send either digitally encoded signals and it can transmit audio signals. Their appearance are the metal shell shape packaging, appearance and internal principle. (View)
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Published:2011/9/15 22:56:00 Author:Rebekka | Keyword: Hafei Simbo car, engine ignition system
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Published:2011/9/15 22:55:00 Author:Rebekka | Keyword: Hafei Simbo , car start system
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Published:2011/10/18 3:26:00 Author:Rebekka | Keyword: Third-order asymmetric filter, op amp
Filter circuit composed of third-order asymmetric composed of LM356 op amp is shown as above. Third-order filter has two outputs A1 and UA2. The former one is high-pass filter output, another one is low-pass filter output. (View)
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Published:2011/9/15 22:50:00 Author:Rebekka | Keyword: LED , boost pressure driver
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Published:2011/9/15 22:48:00 Author:Rebekka | Keyword: Italy, high integrated telephone
Italy high integrated telephone circuit diagram. (View)
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Published:2011/9/15 22:51:00 Author:Rebekka | Keyword: AC zero passage, trigger solid relay
Zero-triggered communication solid-state relay electrical appliance circuit diagram. (View)
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Published:2011/9/15 22:53:00 Author:Rebekka | Keyword: Motor , fixed direction rotation, control circuit
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Published:2011/10/18 2:07:00 Author:Rebekka | Keyword: Small wireless call system
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Published:2011/9/27 22:56:00 Author:Rebekka | Keyword: Fax circuit
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Published:2011/10/18 3:04:00 Author:Rebekka | Keyword: SCR , transistor
SCR is very general. And it is very easy to buy. It is hard to discrete the use of components chart. This is a self-locking circuit, and perhaps this can be evolved based on some other functional circuits. (View)
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Published:2011/10/18 2:54:00 Author:Rebekka | Keyword: Chang an Alto car, air conditioning system
Chang'an Alto car air conditioning system circuit diagram is shown as above. (View)
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