Published:2011/4/14 4:45:00 Author:Nicole | Keyword: succession, double timing
This circuit can control the two switchesin succession timing, andthe control time can be adjusted from a few seconds to several minutes; If it is used to mechanical control of forward and reverse reciprocating movement, it can make motor forward and reverse operation according to timing requirements. (View)
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Published:2011/4/12 3:42:00 Author:Jessie | Keyword: Mobile phone, keyboard
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Published:2011/4/12 3:40:00 Author:Jessie | Keyword: Close induction detection
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Published:2011/4/11 23:02:00 Author:Jessie | Keyword: Gas control alarm, exhaust
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Published:2011/4/13 4:19:00 Author:Nicole | Keyword: thin wire, light control
MOC3011 photoelectric isolator can use low voltage singal line to control large bulb, motor, pump and other AC load form distance, it also conforms to building electric installation standard. The choice of thyristor type is decided by the load. (View)
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Published:2011/3/30 2:11:00 Author:muriel | Keyword: Single quarter lithium ion battery , protection circuit
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Published:2011/4/19 4:14:00 Author:Nicole | Keyword: delay light, digital circuit
The figure is as shown, it is a simple and practical touch delay light switch. A CD4011 digital integrated circuit is made as the core to consist it, it is used to light in stairs aisle and other occasions. (View)
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Published:2011/4/19 3:50:00 Author:Nicole | Keyword: delay light, music
This is delay light with KD-9300 music integrated circuit, when you press the key switch SB, the light E is on, it delays about 20s, then E will cut off automatically. (View)
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Published:2011/4/19 3:11:00 Author:Nicole | Keyword: program control, flowing water, color lamp, firecracker sound
The figure is as shown. It consists of flowing water light control circuit, simulation firecracker sound circuit, audio power amplifier circuit and AC depressurization rectifier circuit. Program control flowing water color lamp control special integrated circuit MS51C61 is made as the core to consist this light control circuit. (View)
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Published:2011/4/19 2:44:00 Author:Nicole | Keyword: festival color lamp, disco music
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Published:2011/4/18 21:29:00 Author:Jessie | Keyword: Digital pressure tester, digital pressure signal disposal device
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Published:2011/4/18 21:39:00 Author:Jessie | Keyword: bridge isolated amplifier
As shown in figureis precision bridge isolated amplifier circuit. Bridge circuit is widely used in automatic control, test, and data acquisition system. Figure (a) is a kind of high precision and high gain bridge isolated amplifier circuit. The sensor Rin bridge can be heat-sensitive, photosensitive or thermistor, etc. The signal voltage of sampling bridgeis single polarity signal, its value is 0~-10mV. This input signal firstamplifiered byhigh precision instrument INA101, and the voltage amplifier multiples of this amplifier is 100. INA101's internal circuit diagrams are as shown in figure (b), (c). (View)
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Published:2011/4/19 4:21:00 Author:Nicole | Keyword: Bidirectional SCR, dimming light, bidirectional trigger diode
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Published:2011/4/19 4:30:00 Author:Nicole | Keyword: color lamp, controllor
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Published:2011/4/19 4:00:00 Author:Nicole | Keyword: delay light, digital circuit
The figure is as shown, it is a touch delay light with CD4013 digital integrated circuit, the circuit consists of C3 depressurization, VD2 rectifier and VS steady voltage, after connecting to power supply, two sides of C2 can output 12V stable DC voltage to supply to the whole switch power utilization. (View)
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Published:2011/4/19 4:07:00 Author:Nicole | Keyword: delay light, digital circuit
The figure is as shown, it is a touch delay light with CD4069 digital integrated circuit, it adopts two-wire system connection, it can instead of ordinary light switch directly, it is not needed to change the indoor original wiring. The circuit delay time is determined by the discharge time of R3, C1, the data is about 1min. (View)
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Published:2011/4/19 3:25:00 Author:Nicole | Keyword: Delay light
The figure is delay light with light control special integrated circuit, the circuit is very simple. In figure, HL2102 IC is produced by Wuxi asic micro electronics oc.,ltd. (http//www.wxasic.corn) it is a light control timing special integrated circuit. This circuit is used to light at night when you get up, when you want to use it just press the push-button switch SB, the light E will light, delay few seconds then the light will off automatically. When the light is on, if you press the SB again, then the light E will off immediately. (View)
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Published:2011/4/19 4:02:00 Author:Nicole | Keyword: delay light, digital circuit
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Published:2011/4/19 3:31:00 Author:Nicole | Keyword: Stepless dimming light
The circuit is as shown, it is a keyed stepless dimming light with HT7700A dimming special integrated circuit, it uses SB single key control, the dimming brightness has 96 levels changes. (View)
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Published:2011/4/19 2:15:00 Author:Nicole | Keyword: multi-pattern color lamp, auspicious drum
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