Published:2011/4/2 3:53:00 Author:Nicole | Keyword: long-time timing, integrated circuit
The timing time in figure is decided by timing R.C components R, C and 4, 5 pins preset level B, A. The value of timing time T=2/3•1024•N•R•C is determined by A, B, in theory.
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Published:2011/4/2 3:56:00 Author:Nicole | Keyword: speed regulation, integrated trigger
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Published:2011/4/2 3:57:00 Author:Nicole | Keyword: KV protection
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Published:2011/4/2 4:10:00 Author:Nicole | Keyword: on-off timing, special timing, integrated circuit
MC14541 is a programmable timing special IC. The timing time of this circuit is 3 hours, you can through selecting RTc、CTc、Rs to choose the time of required control power on-off.
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Published:2011/4/6 1:10:00 Author:Nicole | Keyword: Computer, serial interface
This circuit is simple in structure, only has 6 resistances, 2 transistor and 2 LED, it is used to the computer RS-232 serial interface state indication, when D1 lights up, it means logic 0 , the interface circuit voltage is about 4.5~5.5V; when D2 lights up, then in the 1 state, the interface circuit voltage is about -7.0~-5.5V. When it is static, the power consumption is about 150μA; when there is a singal, the power consumption is about 27mA. (View)
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Published:2011/4/6 1:23:00 Author:Nicole | Keyword: computer, photoelectric isolation, interface
This circuit uses optocoupler to isolate the computer and peripheral device. IC2 is CCD; IC1 is threshold comparator, threshold voltage is adjusted by P1; R2, C2 form low-pass filter, to prevent IC1 from false triggering.
When TTL output is in the 0 state, to light up the primary of IC2, then its secondary turn-on, made IC1 output is in the 1 state, conversely, output is in the 0 state. (View)
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Published:2011/4/6 1:46:00 Author:Nicole | Keyword: multipurpose, exposure, timing
This device can satisfy photographic fans to master proper exposure, to ensure the quality of photos. It has the functions of high precision timing, wide common use, exposure timing, dimming, voltage regulation and so on. Amplifier bulb or electric iron, heating blanket, lamp, electric fan, motor and electrical equipments can connect to the output socket CZ, the output power is limited by controlled slicon capacity, if it is pure resistance load, then it can provide 600W power; if it is capacitive or inductive load, the output power is lower than 300W. (View)
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Published:2011/4/6 0:42:00 Author:Nicole | Keyword: regulated power supply, integrated regulator
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Published:2011/4/6 0:44:00 Author:Nicole | Keyword: regulated power supply
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Published:2011/4/6 2:28:00 Author:Nicole | Keyword: 3A regulated power supply, integrated regulator
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Published:2011/4/6 0:44:00 Author:Nicole | Keyword: regulated power supply
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Published:2011/4/6 0:46:00 Author:Nicole | Keyword: regulated power supply, symmetry
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Published:2011/4/6 0:47:00 Author:Nicole | Keyword: regulated power supply
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Published:2011/4/6 0:51:00 Author:Nicole | Keyword: ±5V regulated power supply, ±l2V regulated power supply
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Published:2011/4/6 2:26:00 Author:Nicole | Keyword: regulated power supply
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Published:2011/4/6 0:54:00 Author:Nicole | Keyword: constant voltage, adjustment, regulated power supply
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Published:2011/4/6 0:56:00 Author:Nicole | Keyword: regulated power supply, integrated regulator
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Published:2011/4/6 1:49:00 Author:Nicole | Keyword: regulated power supply
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Published:2011/4/6 2:22:00 Author:Nicole | Keyword: Charging
LP3945 can change the working parameter of lithium ion battery, it also can read the state of constant current and constant voltage register through IC interface, then inquiry the state of charging period. (View)
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Published:2011/4/6 1:50:00 Author:Nicole | Keyword: regulated power supply
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