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LED digital salient pole appearance circuit diagram

Published:2011/4/29 0:37:00 Author:Ecco | Keyword: LED , digital, salient pole , appearance

LED digital salient pole appearance circuit diagram
The light-emitting diode display is also known as LED digital display, it uses the feature, which light-emitting diodes will be lit by flowing certain current under forward voltage, the seven segment LED being packaged will become a LED digital display. Its shape is shown as the chart.   (View)

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Two RY927 league level applications circuit diagram

Published:2011/4/28 22:55:00 Author:Ecco | Keyword: Two , league level , application

Two RY927 league level applications circuit diagram
When RY927 is using cascadedly, it needs to connect the related input ends according to the chart. The connecting method is the same when there are more than two stages. It should be noted that RY927 allows seven cascaded as maximum, and it can drive 84 LED at best. Besides the above applications, it can also constitute the automatic dimming, speed tables and so on. If it requires less precision, it can also be used for voltage indication, field instruction and other circuits.   (View)

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Relay status indication circuit diagram

Published:2011/4/29 1:15:00 Author:Ecco | Keyword: Relay, status indication

Relay status indication circuit diagram
Figure shows the relay status indication circuit. The relay has one or more sets of contacts, If the public end of a group of contacts connects to VDD, the public end will connect to normally closed contacts in releasing state, and LED-R emits red light; the public end will connect to normally open contacts in pulling state, and LED-G emits green light.   (View)

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LED full-wave rectifier circuit

Published:2011/4/29 1:16:00 Author:Ecco | Keyword: LED , full-wave , rectifier

LED full-wave rectifier circuit
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LED half-wave rectifier circuit

Published:2011/4/29 1:19:00 Author:Ecco | Keyword: LED, half-wave , rectifier

LED half-wave rectifier circuit
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High voltage following circuit diagram

Published:2011/4/28 22:34:00 Author:Ecco | Keyword: High voltage , following

High voltage following circuit diagram
High voltage following circuit diagram is shown as the chart.   (View)

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Analog turning disc guessing award device circuit diagram

Published:2011/4/28 21:39:00 Author:Ecco | Keyword: Analog, turning disc , guessing award device

Analog turning disc guessing award device circuit diagram
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Playing football game circuit diagram

Published:2011/4/28 22:18:00 Author:Ecco | Keyword: Playing football game

Playing football game circuit diagram
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Tracking sun photoelectric servo circuit used in chromospheric telescope

Published:2011/4/28 21:01:00 Author:Nicole | Keyword: photoelectric servo, chromospheric telescope

Tracking sun photoelectric servo circuit used in chromospheric telescope
This servo system is used to observe sun. The sunshine is projected onto a Φ50mm round image by optical lens, to fix a 3DU33 photosensitive transistor to the later light slit of AA' and BB', it requires the parameters of two tubes should be as nearly as possible, after 3DG6D differentail amplifier, it is modulated into AC 50Hz, then it is AC amplified. After phase-sensitive rectification, it will be changed into DC singal, it can avoid the zero drift of DC amplifier. The parameters of two 3DG6D also should be coincided, and they are put into the same copper cap. The photoelectric tracing precision of this circuit is 0.8arc-second, the electrical energy is provided by a 300W portable lamp transformer.   (View)

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The typical application circuit diagram of RY927 multi-segment LED driver linear display

Published:2011/4/28 21:12:00 Author:Ecco | Keyword: typical application , multi-segment, LED , driver , linear display

The typical application circuit diagram of RY927 multi-segment LED driver linear display
RY927 multi-segment LED driver linear display   (View)

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20-bit LED dot / line conversion display circuit diagram composed of two LM3914

Published:2011/4/28 21:03:00 Author:Ecco | Keyword: 20-bit, LED, dot, line, conversion , display , two

20-bit LED dot / line conversion display circuit diagram composed of two LM3914
20-bit LED dot / line conversion display circuit diagram composed of two LM3914   (View)

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VU meter circuit diagram composed of M3916

Published:2011/4/28 20:49:00 Author:Ecco | Keyword: VU meter

VU meter circuit diagram composed of M3916
VU meter circuit diagram composed of M3916   (View)

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About alternating-current bridge Symmetric incentive circuit

Published:2011/4/2 4:12:00 Author:may | Keyword: alternating-current bridge, Symmetric incentive

About alternating-current bridge Symmetric incentive circuit
About alternating-current bridge Symmetric incentive circuit is show in the following picture:   (View)

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Bar code reading circuit

Published:2011/4/28 1:33:00 Author:Nicole | Keyword: Bar code, reading

Bar code reading circuit
This circuit is sensitive to edge, every change from black to white or white to black will output narrow pulse; the timing figure shows that it is in accordance with the bar code parrent output. Whatever temperature, environmental lighting or pattern background is, DC servo remain Q1 base's DC level comstant. It also can use photodiode and 2N2222 transistor as sensor to enlarge the width. The amplified differential signal produced by Q2 collector is magnified further by IC2, feeding it to double threshold value comparator. About each mutation, the comparator will output a narrow pulse, this narrow pulse is suitable for feeding to microprocessor.   (View)

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TTL LED driver circuit diagram

Published:2011/4/28 2:27:00 Author:Ecco | Keyword: TTL, LED driver

TTL LED driver circuit diagram
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The LED driver circuit diagram with CMOS op amp

Published:2011/4/28 2:25:00 Author:Ecco | Keyword: LED driver , CMOS op amp

The LED driver circuit diagram with CMOS op amp
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Analog signals isolation circuit

Published:2011/4/11 2:59:00 Author:may | Keyword: Analog signals isolating

Analog signals isolation circuit
Analog signals isolation circuit is shown in the diagram:   (View)

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The typical application circuit of LC901 integrated circuit

Published:2011/4/28 2:01:00 Author:Ecco | Keyword: typical application circuit , integrated circuit

The typical application circuit of LC901 integrated circuit
The typical application circuit of LC901 integrated circuit is shown as the chart.   (View)

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SN55476~SN55479 dual peripheral driver circuit

Published:2011/4/24 1:24:00 Author:May | Keyword: dual peripheral driver

SN55476~SN55479 dual peripheral driver circuit
SN55476~SN75479 is high voltage, strong current and fast switch time double peripheral drive. Its output current is 300mA, output voltage is high, switch speed is fast, it has output clamp diode, input end with TTL and MOS circuit is consistent, it is very suitable for hammer driver. The connect lineof SN55477 using as lamp driver is shown in the diagram.   (View)

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RTD cold junction compensation thermocouple input circuit composed of XTR101

Published:2011/4/1 2:19:00 Author:may | Keyword: TD cold junction compensation thermocouple input

RTD cold junction compensation thermocouple input circuit composed of XTR101
This circuit use J type RTD. Its resistance value corresponding to the temperature can be checked through at RTD factory offered table. It uses 20Ω zero adjustment potentiometer to zero point correction.   (View)

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