01. What is a linear voltage regulator?
A linear regulator uses a transistor or FET operating in its linear region to subtract the excess voltage from the input voltage of the application to produce a conditioned output voltage.
The voltage drop voltage is the minimum value of the difference between the input voltage and the output voltage required by the regulator to maintain the output voltage within 100mV above and above its rated value.
LDO (Low Dropout) regulators with positive output voltages generally use power transistors (also known as delivery devices) as PNPs. This transistor allows fullness, so the regulator can have a very low dropout voltage, generally around 200mV; In contrast, conventional linear regulators using NPN composite power transistors have a voltage drop of about 2V.
The negative output LDO uses the NPN as its delivery device, and behaves in a similar way to the PNP device with the positive output LDO.
02. What is a switching regulator?
Switching regulators use output stages that repeatedly switch between "on" and "off" states to generate an output voltage along with the energy storage components (capacitors and inductors).
It is adjusted by adjusting the switching punctuality according to the feedback sample of the output voltage.
In a fixed-frequency regulator, switching punctuality is conditioned by the pulse width of the switching voltage, which is known as PWM manipulation.
In gated oscillators or pulse regulators, the width and frequency of the switching pulses are always stable, but the "on" or "off" of the output switch is controlled by feedback.
Depending on the arrangement of the switches and energy storage components, the resulting output voltage can be greater or less than the input voltage, and multiple output voltages can be generated with a single regulator. In most cases, a pulse (buck) switching regulator converts a higher power supply than a linear regulator with the same input and output voltage requirements.
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Electrical appliances need voltage regulators for reasons
Typically, every electrical device or device is designed for a wide range of input voltages. Depending on the sensitivity, the operating scale of the device is constrained to a specific value, for example, some devices can tolerate ±10% of the additional voltage, while others can tolerate ±5% or less.
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Delixi DZ47S wiring method
The general leakage circuit breaker is used to wire the principle of the upper and lower lines, as long as the phase line and the zero line can be distinguished, between, the zero line is marked with N on the right, and the incoming and outgoing lines are the same.
Delixi DZ47LE C40 ...
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Delixi circuit breaker common model features
CDB1 miniature circuit breaker is a current-limiting high-breaking miniature circuit breaker with overload and short-circuit maintenance, which is suitable for communication 50Hz, additional voltage 400V and below, additional current 63A and below circuits, as line overload and short circuit maintenance, can also be used under normal circumstances.
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Delixi inverter function introduction
1. If the impact on the power grid can be reduced, it will not cause the problem of excessive peak-to-valley difference.
2. It can speed up the controllable function, so as to speed up the smoothing according to the needs of users;
3. The abort method of the motor and equipment is controllable, so that ...
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Analysis of various models of Delixi circuit breaker
CDB1 miniature circuit breaker is a current-limiting high-breaking miniature circuit breaker with overload and short-circuit two-layer maintenance, which is suitable for communicating 50Hz, additional voltage 400V and below, and additional current 63A and below circuits.
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The difference between an isolation switch and a circuit breaker
The circuit breaker has arc extinguishing equipment, so the circuit breaker can be operated with load, not only the load current, but also the fault (short circuit) current; The circuit breaker has a good package form, so simply observing the circuit breaker cannot intuitively determine whether it is in the closed or disconnected position.
Isolate ...
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The basic knowledge of Delixi switching regulators
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 the demand control system (negative feedback), from the automatic control theory, we know that when the voltage rises through negative feedback to reduce it, ...
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Delixi molded case circuit breaker Icu=ICS understands
Delixi 3P air switch, rated current 630A, rated voltage 380V. The Icu=Ics=70kA of this circuit breaker. When the short-circuit current reaches 70kA, can the circuit breaker still be used? If it works, the ICU is already at its limit, which is a contradiction. If it can't be used, ICS is 70KA, which means ...
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Prevent damage to the inverter - Delixi inverter
1. Check and tighten all terminals to prevent serious heating caused by loosening.
2. Conduct a comprehensive view of the input (including output) terminal, rectifier module, inverter module, DC capacitor and fast-melting devices, and the parameters ...
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Delixi control transformer structure type
Delixi's control transformer is one of the products used in many equipment, the type of Delixi transformer is divided into: BK, JBK, BKC, JMB, BJZ, DG, BZ and other series of control lighting transformers, with excellent performance, reliable work, wide applicability and other characteristics, generally used in machine tools, mechanical ...
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Delixi CDI-EM60 series inverter application
Delixi CDI-EM60 series inverter is a high-performance communication motor drive, suitable for a variety of industrial use. This kind of inverter has a variety of advantages, such as ** rate, low harmonic distortion, low noise, low oscillation, etc.
Delixi CDI-EM60 series inverter can be used in a variety of ...
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Delixi inverter parameter setting method
P0.00: Set to G type (constant torque load type).
P0.01: Set to 1 fundamental efficacy model.
P0.02: Set to 1V/F control.
P0.03: Set to 0 keyboard control.
P0.04: Set to be given by the external terminal for multi-segment commands.
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Low dropout linear regulator design power supply precautions - Delixi
1. Pay attention to the maximum value of output current: this is a very critical parameter, the current used exceeds the maximum output current of LDO, then the voltage is unstable, and the system will fail.
LDO limit parameters: The output current is considered according to the 2/3 criterion. The cost of the whole system ...
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Delixi parameter voltage regulator performance and advantages
1. Its overall inductive skills function is the best, its design does not use electronic equipment, and the environmental adaptability and stability and reliability function are the highest. When the capacity of most power grids is sufficient, the voltage is relatively stable, but with the improvement of electrification and informatization, the pollution of some power grids, ...
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Delixi inverter built-in bypass soft starter CDRA-K3
Delixi built-in bypass soft starter CDRA-K3 series is a set of soft start, soft parking and multi-functional protection in one of the motor control equipment. Realize a smooth starter motor without impact during the entire starting process. CDRA-K3 series has built-in bypass contactor and control power supply.
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Delixi switching regulator basics
1. What is a switching regulator?
Switching voltage regulators, some people call it regulators, voltage regulator sources. Complete voltage regulation, is the demand control system (negative feedback), from the automatic control theory we know that when the voltage rises, it will be lowered through negative feedback, and when the voltage drops, it will be ...
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How to solve the data running flight of Delixi inverter controller
Problem depiction:
Delixi inverter controller data flying, or the data is occasionally incorrect, how to solve?
Solution(s):
This is the result of severe disturbances to the controller. Frequently...
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Debugging method of servo motor - Delixi
First: Initialize the parameters
Before wiring, initialize the parameters. On the control card: select the control method; Reset the PID parameter to zero; When the control card is powered on, the enabling signal is turned off by default; Save this status to ensure that this is the condition when the control card is powered on again.
The servo motor ...
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Delixi inverter speed parameters
There are two speeds of Delixi inverter, one is the target speed, and the other is the speed of practice.
The target speed requires the value of the detailed parameters to be adjusted, such as the *** high frequency/*** high frequency in the inverter parameters; Regarding the practical output speed, the frequency needs to be checked in the inverter parameters ...
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The role of Delixi AC voltage regulator
Delixi high-precision fully active AC voltage regulator uses linear integrated circuits to form a control system, controls the servo motor, drives the contact voltage regulator to actively regulate the voltage, and is equipped with delay, overvoltage, undervoltage and overcurrent maintenance functions. The product has high efficiency, the same input and output voltage waveforms, and the output ...
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