1. What is a switching regulator?
Switching regulator, English (regulatior), some people call it a regulator, a voltage regulator source. From the theory of automatic control, we know that when the voltage rises it is lowered by negative feedback, and when the voltage drops, it is raised, so that a control loop is formed. The block diagram in the figure is PWM (Pulse Width Manipulation Method), and of course there are others such as PFM (Frequency Manipulation Method), Phase Shift Manipulation Method, etc.
2. The primary classification of switching regulators
ACCORDING TO THE RELATIONSHIP BETWEEN THE INPUT VOLTAGE AND THE OUTPUT VOLTAGE, SWITCHING REGULATORS ARE MAINLY DIVIDED INTO BUCK TYPE AND BOOST TYPE, AND BUCK/BOOST TYPE (BUCK/BOOST), AND THIS ARTICLE FIRST CLARIFIES THE FIRST TWO.
3. Modulation method of switching regulator
PWM: A simple way to periodically change the turn-on and turn-off times of a switch
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Delixi voltage regulator fault phenomenon
Delixi regulator output voltmeter keeps swinging back and forth, and sparks occur at the carbon brush, and the problem phenomenon and cause analysis
1. The contact pressure between the carbon brush and the coil plane is too small
2. The carbon brush is severely worn
Delixi voltage regulator has ...
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The difference between circuit breaker and disconnector - Delixi
The disconnector is a kind of switching equipment that is mainly used for "blocking the power supply, reversing the operation, and connecting and blocking the small current circuit", without arc extinguishing function. When the barrier switch is divided into directions, there is an insulation distance between the contacts that meets the specified requirements and a significant disconnection mark; When in the azimuth, it can carry ...
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Delixi switching regulator basics
1. What is a switching regulator?
Switching regulator, English (regulatior), some people call it a regulator, a voltage regulator source. To achieve voltage regulation, it is necessary to control the system (negative feedback), from the theory of automatic control, we know that when the voltage rises, it is lowered by negative feedback, ...
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Introduction of inverter energy feedback - Delixi
The essence of energy feedback is active inverter, and the energy feedback of the general inverter is completed by the reverse parallel three-phase inverter at the uncontrolled rectification of the pre-stage of the general inverter, and the regenerative energy is fed to the power grid. The main circuit of the energy feedback equipment is mainly composed of thyristors, IGBTs and IPM modules.
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Delixi product installation, operation and maintenance instructions
Normal conditions of operation, installation, and transportation
1 Normal operating conditions
Appliances that meet the rules of this code should be able to operate under the following conditions.
Note: See Appendix B for the requirements of non-standard application conditions.
Non-standard ...
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Delixi voltage regulator safety installation method
In people's lives, voltage regulators are not short, but some people do not install voltage regulators correctly, which leads to great safety hazards in the use of voltage regulators. Here's how to properly install the regulator:
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Why is the operation of the inverter energy-efficient? - Delixi
The inverter lowers the output frequency to reduce the speed of the motor, taking the conditioning air volume as an example. By reducing the air volume, power consumption can be significantly reduced. Why is the operation of the inverter energy-efficient?
According to fluid mechanics, power = pressure× flow, flow ...
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Delixi single-phase inverter CDI-EM60 series manual
Read this statement carefully before installing, operating, maintaining, and viewing the EM60 series drives.
In order to ensure the safety of your person, equipment and property, please be sure to read carefully before using our EM60 series inverter.
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Delixi solid state relay introduction
What is a Solid State Relay
Solid State Relay (SSR) is a pointless switch composed of microelectronic circuits, discrete electronic devices, and power electronic power devices. The barrier between the control end and the load is completed by a barrier device. The input of the solid state relay is micro...
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AC contactor controls the forward and reverse rotation of the motor - Delixi
The forward rotation control of the asynchronous motor, the peers of the double contactor and the button are doing more, but is there anyone who will use an AC contactor to achieve the forward rotation control effect of the motor?
Practical application: general bench drill, letter ...
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A brief introduction to the characteristics of Delixi
1. Nominal value
A suitable approximation of a switchgear or component and equipment to mark or identify it.
2. Limiting value
The maximum or minimum promise of a quantity in the specification and specification.
3、 ...
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Delixi spare parts replacement cycle
1. Cooling fan (2-3 years)
As long as the inverter is in use, the cooling fan has always been running, so the cooling fan is generally a short-service life accessory, generally after the use of the cooling fan for 2-3 years, the bearings, balls, motors, etc. of the fan are seriously worn, and they need to be replaced.
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Delixi launched a new 6 series CDW6i frame circuit breaker
At the end of July, Delixi Electric launched a new 6 series CDW6i structural circuit breaker and a number of industrial control accessories.
The new 6 series CDW6i structural circuit breaker has complete product specifications, which can provide professional customers with more choices, excellent functions, and ...
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Delixi CDM molded case circuit breaker upgrade
The 6 series electronic molded case circuit breaker CDM6Ei was launched in 2017 with the addition of a 1600A shell frame; High through-off capacity, *** high Ics=65kA, to meet specific application occasions; Long-distance four-remote communication to complete intelligent connectivity; Support mobile APP communication and alarm non-tripping function; The maximum operating temperature of the product can be ...
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The component of the main line of the inverter - Delixi
An inverter is usually a device that replaces a constant voltage and frequency with a constant voltage or frequency for a variable voltage. However, in the application, the inverter will inevitably present shortcomings, and when analyzing the shortcomings of the problem, in order to deal with the shortcomings well and quickly, ...
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Daily maintenance of reducer - Delixi
The reducer is a kind of transmission equipment used for low speed and high torque, which uses the speed converter of the gear to reduce the number of revolutions of the motor (motor) to the required number of revolutions, and obtains a large torque organization. Its main function is to reduce the speed and improve the output torque at the same time, and the torque output share is according to the motor ...
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Noise characteristics of different switching regulator topologies - Delixi
Currently, there are many different switching regulator topologies. Some topologies are widely used, such as the classic buck converter, also known as the buck converter. However, there are also some lesser-known switch-mode DC-DC converters that include Zeta topologies. These topologies are divided into fundamental topologies ...
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The general principle of circuit breaker selection - Delixi
(1) The additional operating voltage of the circuit breaker ≥ the additional voltage of the line.
(2) The additional current of the circuit breaker ≥ the line load current.
(3) The additional short-circuit of the circuit breaker can be turned on and off to ≥ the maximum shortness that may be present in the line.
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The cascade protection of Delixi circuit breaker
In the design of Delixi power distribution system, the selective cooperation between the upper and lower levels of the circuit breaker must have "selectivity, rapidity and sensitivity".
Selectivity is related to the cooperation of the upper and lower circuit breakers, and the speed and sensitivity are related to the maintenance of the characteristics of the appliance itself and the way the line operates ...
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Delixi selects the advantages of the inverter
1. Significant energy-saving effect: up to 20%-45%
2. Optimize electrical equipment: when the motor starts, there is no large current impact, which reduces the load of the transformer
3. Convenient operation: the speed of the motor is directly given according to the size of the air volume, and the accuracy of the air volume is adjusted accurately
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