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Control Circuit

Index 69



QM9403 three-phase motor protection circuit

Published:2011/12/7 2:04:00 Author:Ecco | Keyword: three-phase, motor protection circuit

QM9403 three-phase motor protection circuit
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QM9403 single-phase motor protection circuit

Published:2011/12/7 1:49:00 Author:Ecco | Keyword: single-phase , motor protection

QM9403 single-phase motor protection circuit
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UPC1237 speaker protection circuit ( LM12 power amp circuit )

Published:2011/12/9 0:57:00 Author:Ecco | Keyword: speaker, protection circuit , power amp

UPC1237 speaker protection circuit ( LM12 power amp circuit )
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M7120A surface grinding machine control circuit

Published:2011/12/7 1:59:00 Author:Ecco | Keyword: surface grinding machine, control circuit

M7120A surface grinding machine control circuit
M7120A surface grinding machineconsists ofthe bed , table , electromagnetic chuck , grinding , slide , column , etc., andthe control circuit is shown as the chart.   (View)

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Automatic input control circuit of the spare motor

Published:2011/12/7 1:40:00 Author:Ecco | Keyword: Automatic linput control lspare motor

Automatic input control circuit of the spare motor
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Multi-function fan with frogs calling control circuit using LC903

Published:2011/12/7 1:37:00 Author:Ecco | Keyword: Multi-function fan , frogs calling , control circuit

Multi-function fan with frogs calling control circuit using LC903
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The multi-function fan with frogs calling control circuit using LC901

Published:2011/12/6 21:22:00 Author:Ecco | Keyword: multi-function fan , frogs calling , control circuit

The multi-function fan with frogs calling control circuit using LC901
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Multi-function fan with animal sound control circuit using BA3107

Published:2011/12/6 21:45:00 Author:Ecco | Keyword: Multi-function fan , animal sound , control circuit

Multi-function fan with animal sound control circuit using BA3107
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Multi-function fan with nature sound control circuit using BA3106

Published:2011/12/6 21:44:00 Author:Ecco | Keyword: Multi-function fan , nature sound , control circuit

Multi-function fan with nature sound control circuit using BA3106
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Multi-function fan with seashore control circuit using BA3103

Published:2011/12/6 21:43:00 Author:Ecco | Keyword: Multi-function fan , seashore , control circuit

Multi-function fan with seashore control circuit using BA3103
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Multi-function fan with twitter control circuit using BA3102

Published:2011/12/6 21:42:00 Author:Ecco | Keyword: Multi-function fan , twitter , control circuit

Multi-function fan with twitter control circuit using BA3102
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Multi-function fan control circuit using BA3101

Published:2011/12/6 21:40:00 Author:Ecco | Keyword: Multi-function fan , control circuit

Multi-function fan control circuit using BA3101
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Automatic intermittent lubrication control circuit

Published:2011/12/6 1:47:00 Author:Ecco | Keyword: Automatic, intermittent lubrication , control circuit

Automatic intermittent lubrication control circuit
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Multi-tone alarm

Published:2011/11/11 2:56:00 Author:Ecco | Keyword: Multi-tone alarm

Multi-tone alarm
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Timing control circuit diagram

Published:2011/10/18 21:25:00 Author:Ecco | Keyword: Timing control

Timing control circuit diagram
The timing control circuit is key to the design for responder, it should complete the following three functions: ① The host pulls the controlling switch to start position, then the speaker emits sound, the answer circuit and timing circuit will be in normal working condition. ② When the players press the answer key, speaker works, then the answer circuit and timing circuit stop working. ③ When the set answer time is up, no answer in time, the speaker also emits sound, then the answer circuit and timing circuit stop working.   (View)

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Electric flute alarm circuit

Published:2011/11/8 21:10:00 Author:Ecco | Keyword: Electric flute alarm, 555

Electric flute alarm circuit
Figure 5.21 shows the tone circuit circuit which can produce two voices with rising tone and dropping tone. Electric flute sound is generated by two generators coupled by optical coupler ( single-junction transistor 2N2648 and the timer 555). 555 generates 0.3HZ frequency signal which makes single-junction transistor VT2 keep this sound increasing or decreasing according to the section.   (View)

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Motor immersion protection circuit

Published:2011/11/8 21:11:00 Author:Ecco | Keyword: Motor immersion protection

Motor immersion protection circuit
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The 8019 schematic diagram controlling by 5402

Published:2011/11/8 21:13:00 Author:Ecco | Keyword: schematic diagram

The 8019 schematic diagram controlling by 5402
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Automatic telephone recording controlling device

Published:2011/11/8 20:33:00 Author:Ecco | Keyword: Automatic, telephone recording , controlling device

Automatic telephone recording controlling device
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Motor overload protection circuit

Published:2011/11/8 20:32:00 Author:Ecco | Keyword: Motor overload protection

Motor overload protection circuit
The circuit is the 5VDC motor protection circuit. The current extreme of DC current passing the motor is 5A, and the motor temperature is monitoring continuously, when it is more than 70 ℃, LTC1153 has fault signal sending to the computer, then the computer automatically shut off the machine.   (View)

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