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Index 2169

Typical application circuit of RS6445C long-time timing integrated circuit

Published:2011/4/2 3:53:00 Author:Nicole | Keyword: long-time timing, integrated circuit

Typical application circuit of RS6445C 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. (View)

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Speed regulation circuit with integrated trigger KC04

Published:2011/4/2 3:56:00 Author:Nicole | Keyword: speed regulation, integrated trigger

Speed regulation circuit with integrated trigger KC04
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Kind of KV protection circuit

Published:2011/4/2 3:57:00 Author:Nicole | Keyword: KV protection

Kind of KV protection circuit
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Single on-off timing control application circuit composed of MC14541 special timing integrated circuit

Published:2011/4/2 4:10:00 Author:Nicole | Keyword: on-off timing, special timing, integrated circuit

Single on-off timing control application circuit composed of MC14541 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. (View)

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Computer serial interface state indication circuit

Published:2011/4/6 1:10:00 Author:Nicole | Keyword: Computer, serial interface

Computer serial interface state indication circuit
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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Computer photoelectric isolation interface circuit

Published:2011/4/6 1:23:00 Author:Nicole | Keyword: computer, photoelectric isolation, interface

Computer photoelectric isolation interface circuit
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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Multipurpose exposure timing circuit

Published:2011/4/6 1:46:00 Author:Nicole | Keyword: multipurpose, exposure, timing

Multipurpose exposure timing circuit
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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5A regulated power supply(supply for TTL integrated circuit)composed of LM340T integrated regulator

Published:2011/4/6 0:42:00 Author:Nicole | Keyword: regulated power supply, integrated regulator

5A regulated power supply(supply for TTL integrated circuit)composed of LM340T integrated regulator
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15V、5A regulated power supply composed of LM340T-15

Published:2011/4/6 0:44:00 Author:Nicole | Keyword: regulated power supply

15V、5A regulated power supply composed of LM340T-15
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3A regulated power supply circuit composed of LM5000 integrated regulator(charging to TTL integrated circuit)

Published:2011/4/6 2:28:00 Author:Nicole | Keyword: 3A regulated power supply, integrated regulator

3A regulated power supply circuit composed of LM5000 integrated regulator(charging to TTL integrated circuit)
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12V、5A regulated power supply composed of LM340K

Published:2011/4/6 0:44:00 Author:Nicole | Keyword: regulated power supply

12V、5A regulated power supply composed of LM340K
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15V、1A symmetry regulated power supply composed of LM340K-15

Published:2011/4/6 0:46:00 Author:Nicole | Keyword: regulated power supply, symmetry

15V、1A symmetry regulated power supply composed of LM340K-15
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12V、10A regulated power supply composed of LM340K-12

Published:2011/4/6 0:47:00 Author:Nicole | Keyword: regulated power supply

12V、10A regulated power supply composed of LM340K-12
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±5V and ±l2V regulated power supply composed of LM340K-12, LM309, LM320-5

Published:2011/4/6 0:51:00 Author:Nicole | Keyword: ±5V regulated power supply, ±l2V regulated power supply

±5V and ±l2V regulated power supply composed of LM340K-12, LM309, LM320-5
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0～15V adjustable regulated power supply composed of LM7815, OPamp 307

Published:2011/4/6 2:26:00 Author:Nicole | Keyword: regulated power supply

0～15V adjustable regulated power supply composed of LM7815, OPamp 307
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Constant voltage and adjustment regulated power supply composed of LM340-05

Published:2011/4/6 0:54:00 Author:Nicole | Keyword: constant voltage, adjustment, regulated power supply

Constant voltage and adjustment regulated power supply composed of LM340-05
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5V、1A regulated power supply circuit composed of LM309K integrated regulator

Published:2011/4/6 0:56:00 Author:Nicole | Keyword: regulated power supply, integrated regulator

5V、1A regulated power supply circuit composed of LM309K integrated regulator
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Double regulated power supply composed of LM309K

Published:2011/4/6 1:49:00 Author:Nicole | Keyword: regulated power supply

Double regulated power supply composed of LM309K
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Charging circuit composed of LP3945

Published:2011/4/6 2:22:00 Author:Nicole | Keyword: Charging

Charging circuit composed of LP3945
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)