How long does it take to apply for the electrician IC certificate in Houjie, Dongguan in 2016? Are there any good training institutions?

The switching regulator circuit includes a sampling circuit, a reference source, a comparator, and a pulse width (or frequency) adjustment circuit. The sampling circuit obtains the sampling voltage and compares it with the reference voltage to generate an error voltage and amplifies it to control the on and off of the switching regulator tube. time to change the frequency or pulse width of the high-frequency pulse to stabilize the output voltage. Integrated gate circuits can be divided into two categories according to different internal active devices: one type is bipolar transistor integrated circuits, which mainly include transistor logic, emitter coupling logic, etc.; the other type is unipolar integrated circuits including , and several types. Commonly used are and integrated circuits.
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Person: Teacher Li
Consultation phone number:
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School name
: Dongguan Guangyou Vocational Training School
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Address: Third Floor, Dongguan Bus Terminal East Station (Guangyou Education)
Guangyou Vocational School is open all year round
School electrician delivery Electrician exam practice software
Guangyou Education
Training goals
: Starting from scratch, guide students in all aspects how to connect indoor and outdoor wires, emergency first aid and treatment of electric shock, electrician field operation and theory combined with safe operation and on-the-job operation and employment experience exercises
Specific electrician training course introduction:
Junior electrician training course introduction:
Safe operation of electricians
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Basic knowledge of electrical circuits
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Circuit calculation
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Series, parallel connection and application of resistors
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Alternating current, direct current
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Single-phase alternating current, three-phase alternating current Phase alternating current
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Transformer, mutual inductor
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Single-phase ammeter, three-phase ammeter
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Motor
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Use of electrical instruments
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Multimeter
.
Megohmmeter
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Current clamp meter
.
Ammeter< br/> .
Voltmeter
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Application of low voltage electrical appliances
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Fuse
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Knife switch
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Circuit breaker
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Contactor
.
Thermal relay
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Intermediate relay
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Time Relay
.
Button
.
Lighting circuit practical operation
.
Industrial power circuit practical operation
.
Motor forward rotation Control
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Motor interlocking forward and reverse control circuit
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Double interlocking forward and reverse control circuit
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Workbench automatic reciprocating control Circuit
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Motor sequential start control circuit
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Motor voltage starting control circuit
Intermediate electrician training course training content: electrical control technology, electrician and electronics basics, Maintenance electrician technology, internal and external line electrician
technology,
Electrical equipment operation,
Transformer and motor operation and maintenance programmable controller principles and applications,
Electricity
Advanced training content such as measurement knowledge and practical operations: digital circuit technology, factory power transformation and distribution technology, factory electrical control technology,
programmable controller principles and applications,
microcontroller principles and practical applications Technology,
Rectifier and inverter
Inverter technology, frequency converter principle and application technology, practical operation, etc.
Various digital devices commonly used in digital systems can be divided into The two major categories are combinational logic circuits and sequential logic circuits. A combinational logic circuit is composed of several basic gate circuits. The output state at any time depends only on the input state at that time and has nothing to do with the original state of the circuit. In a combinational logic circuit, there is only a path from input to output and no path from input