Published:2011/4/26 3:29:00 Author:Ecco | Keyword: Motherboard , maintenance, drawing board, trigger circuit
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Published:2011/4/26 3:41:00 Author:Ecco | Keyword: Microcontroller, test board
The drawing is a more general test board circuit and suitable for ordinary and stones, gold and many other parts of the Treasure experimental procedure. Anyway, it has strong compatibility, versatility and usability. It can be used in water light, digital control, keyboard control, voice music, oscillator, etc.
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Published:2011/4/26 1:46:00 Author:May | Keyword: constant current charger
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Published:2011/4/26 1:57:00 Author:May | Keyword: digital, arithmetic logic unit, association energy generator, eight functions
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Published:2011/4/26 3:36:00 Author:Nicole | Keyword: TOYOTA COASTER, coach, pre-plug
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Published:2011/4/26 3:19:00 Author:Nicole | Keyword: Shenyang JinBei, light car, air conditioning amplifier, evaporator, warm braw
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Published:2011/4/26 3:34:00 Author:Nicole | Keyword: TOYOTA COASTER, coach, motor run-down system, fuel oil preheater
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Published:2011/4/26 3:22:00 Author:Nicole | Keyword: Shenyang JinBei, light car, singal light, radio cassette player, warm braw, former air conditioner
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Published:2011/4/26 3:24:00 Author:Nicole | Keyword: TOYOTA COASTER, coach, back lamp
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Published:2011/4/26 3:27:00 Author:Nicole | Keyword: TOYOTA COASTER, coach, headlight
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Published:2011/4/26 3:31:00 Author:Nicole | Keyword: TOYOTA COASTER, coach, exhaust brake
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Published:2011/4/26 3:31:00 Author:Nicole | Keyword: TOYOTA COASTER, coach, exhaust brake
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Published:2011/4/26 3:30:00 Author:Rebekka | Keyword: Siren generator
Using KD-28 as siren generator circuit diagram is shown as above. (View)
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Published:2011/4/26 3:30:00 Author:Rebekka | Keyword: voice switching
Using KD-28 as voice switching circuit diagram is shown as above. (View)
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Published:2011/4/24 4:50:00 Author:Rebekka | Keyword: single-chip , encoding and decoding
UM3758-108A/AM shape pin map
UM3758-108A/AM encoding and decoding integrated circuit has the function of encoding sending and decoding receiving. The device itself has 10-bit three-state address inputs and 8-bit latch functions with a variety of ways to achieve long-distance remote control. It has the unique dual-duplex transceiver remote control and body functions. At present, this device is widely used in automotive, defense of the motherland, safe, mobile phones and military communications and other aspects of remote control, alarm, and password control circuits.
Electrical parameters UM3758-108A/AM electrical parameters are identical. The main electrical parameters are: Working voltage range 3 ~ 12V, typical application voltage of 6V or 9V; Receiving input high minimum 4V, low maximum value of 2V; Other input level VIH = (VDD-0.5V ) ~ VDD, VIL = 0.5V; Output level VoH = (VDD-0.5V) ~ VDD, VOL = 0 ~ 1V; Data output current is ± 10mA (level is VDD / 2 时); TX / Rx-ended output current up-40mA or +20 mA; Chip operating clock oscillation frequency fosc = 160kHz.
Remote code transmission circuit composed of UM3758-108A/AM
Remote decode transmission circuit composed of UM3758-108A/AM
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Published:2011/4/22 2:53:00 Author:Rebekka | Keyword: Infrared remote control, receiver typical application
YN5049/5050 multiple infrared remote receiver is a dedicated remote control receiver IC that uses with YN5048 multiple infrared remote control transmitter fetters. They are mainly used in TV, stereo, VCR and other home appliances remote areas. There are similar models BL9150, TC9150.
YN5049/5050 shape pin map.
YN5050 internal block diagram.
YN5049/5050 infrared remote control receiver limit operating parameters.
(1)
(2)
(1), (2) are infrared remote control receiver YN5049/5050 typical application circuit
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Published:2011/4/20 4:19:00 Author:Rebekka | Keyword: Ratio motor wireless , remote control
Ratio motor wireless remote control transmitter circuit.
Ratio motor wireless remote control receiver circuit.
IC2 is the LM386. It is a good performance low-power audio amplifier integrated circuits. It is widely used.
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Published:2011/4/21 10:12:00 Author:Rebekka | Keyword: infrared remote control application , encoder decoder matching
The matching use of YN5103 and decoder YN5203 can be widely used in automotive, building door security systems, home appliances and other aspects of multi-channel remote control.
YN5103/5203 shape pin map.
YN5103 internal block diagram.
YN5203 internal block diagram.
YN5103/YN5203 encoder / decoder, limits the working parameters:
General application YN5203 oscillation frequency of the decoder should be 2.5 to 8 times of YN5103-IR encoder oscillation frequency. Following table shows the three groups when paired with resistance.
Infrared encoder composed of YN5103-IR.
IR decoding circuit composed of YN5203-M6.
Oscillation resistor Rosc is YN5103: 440k, YN5203: 1M.
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Published:2011/4/26 3:19:00 Author:Rebekka | Keyword: regulated power supply
Using LA4112 as regulated power supply circuit diagram is shown as above. (View)
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Published:2011/4/26 3:17:00 Author:Rebekka | Keyword: pre-amplifier circuit
Using LB1405 as pre-amplifier circuit diagram is shown as above. (View)
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