Published:2011/6/28 20:44:00 Author:qqtang | Keyword: voltage monitoring, resetting circuit
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Published:2011/6/28 21:37:00 Author:qqtang | Keyword: double system, monitoring circuit
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Published:2011/6/27 2:24:00 Author:zj | Keyword: Rice cooker, 01
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Published:2011/6/27 21:17:00 Author:zj | Keyword: Rice cooker, 01
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Published:2011/6/27 4:11:00 Author:zj | Keyword: Telephone Schematic, 09
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Published:2011/6/27 4:16:00 Author:zj | Keyword: Telephone Schematic, 08
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Published:2011/6/27 4:16:00 Author:zj | Keyword: Telephone Schematic, 07
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Published:2011/6/27 4:17:00 Author:zj | Keyword: Telephone Schematic, 06
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Published:2011/6/27 4:18:00 Author:zj | Keyword: Telephone Schematic, 05
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Published:2011/6/27 4:19:00 Author:zj | Keyword: Telephone Schematic, 04
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Published:2011/6/22 8:21:00 Author:Robert | Keyword: IC, Typical, Application
The KS57C2616QFP is a communication single-chip micro-computer IC which is mainly used as the mobile phone control microprocessor in the cordless telephone.
The KS57C2616QFP IC's internal part is made upof CPU, keys scanning pulse generating circuit, keys command coding circuit, clock oscillation circuit (main oscillation and displaying oscillation), charging detecting circuit, power control circuit, PLL circuit, screen displaying decoding driving circuit and so on.
The KS57C2616QFP IC uses 100-pin quatuor package and its typical application circuit is shown in the pictrue.
The picture shows the KS57C2616QFP IC's typical application circuit. (View)
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Published:2011/6/26 21:59:00 Author:Borg | Keyword: time delay alarm
In the figure is the time delay alarm circuit. The alarm consists of 2 NE555 timers, a relay, a ring and a switch circuit, etc. When the switch K1 is closed, the first NE555 alarm is going to making sounds in 20s or so, which controls the working of the 2nd NE555. The second NE555 makes sounds for about 60s. The time delay of about 20s is for the following purposes: first, letting the thief think he is safe, so people can seize him in the basement; second, letting the owner have enough time to reset the switch.
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Published:2011/6/27 3:25:00 Author:TaoXi | Keyword: Diode, light changing, switch circuit
As the figure shows, when the S1 and S2 are closing, the light E lights normally; when the S1 is in the closing state, and the S2 is opening, the light E outputs the dark light; if you open S1, the light E will turn off no matter the S2 is opening or closing.
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Published:2011/6/22 9:55:00 Author:Nancy | Keyword: Teana, indoor lamp
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Published:2011/6/22 9:54:00 Author:Nancy | Keyword: Teana, indoor lamp
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Published:2011/6/22 9:52:00 Author:Nancy | Keyword: Teana, indoor lamp
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Published:2011/6/25 1:58:00 Author:qqtang | Keyword: interceptor
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Published:2011/6/22 8:19:00 Author:Robert | Keyword: IC, Typical, Application
The K5S7C2616B is a communication single-chip micro-computer IC which is mainly used as the mobile phone control microprocessor in the cordless telephone.
The KS57C2616B IC's internal part is made up of CPU which is used to control many kinds of commmand signals' input and output, FSK decoding circuit, many kinds of command signals receiving and detecting circuit and resending circuit, and signal path selection circuit, system clock oscillation circuit, transmitting and receiving static double tone/pulse dialing selecting circuit, ring signal detection circuit, indicator light control, LCD liquid crystal display decoder driving circuit and so on.
The comtrol circuit's typical application circuit composed of K5S7C2616B IC is shown in the pictrue.
The picture shows the KS57C2616B IC's typical application circuit. (View)
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Published:2011/6/18 21:00:00 Author:Lucas | Keyword: optically controlled, insects, trap lamp
The optically controlled insects trap lamp circuit is composed of the bidirectional diode thyristor VT, two-way trigger diode V, photoresistor RC, resistor R, capacitor C, and light bulb EL, and the circuit is shown in the chart. R selects the 1W metal film resistor. RC uses MC45 series of photosensitive resistor, and it should be applied with a transparent rain cover. C selects the polyester capacitor or CBB capacitor with the voltage in 400V. V uses the DB3 or 2CTS2 two-way trigger diode. VT uses TLC336A (3A, 600V) bidirectional diode thyristor. EL uses 5 to 10 pieces of 40W, 220V incandescent bulbs conected in parallel, and the installation should add rain-proof glass shade, and lamp shade should be brushed a layer of black lacquer to enhance the effect of attracting insects.
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Published:2011/6/23 10:52:00 Author:qqtang | Keyword: LCD display, water dispenser
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