GJMK26A1600V vs R1275NS21K
| Part Number |
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| Category | IGBTs-AC | IGBTs-AC |
| Manufacturer | GUOJINGKEJI | WESTCODE (IXYS) |
| Description | IGBT Modules | IGBT Modules |
| Package / Case | - | - |
| Product line | 3 Weeks | 3 Weeks |
| RoHS Status | Active | Active |
| Pbfree Code | ROHS3 Compliant | ROHS3 Compliant |
| Product status | yes | yes |
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1. What are the roles and functions of IGBT?
IGBT plays an important role in power transmission and switch control. Its main functions include:
Power regulation: IGBT can accurately regulate power according to the input signal to achieve efficient power transmission and control.
High voltage isolation: The insulating gate layer inside the IGBT isolates the control end from the power structure to ensure the safe transmission of high voltage between the control signal and the power signal.
Fast switching speed: IGBT has a fast switching speed, which enables it to switch quickly in an instantaneous circuit environment.
Low turn-on voltage drop: The turn-on voltage drop of IGBT is low, which can reduce energy loss and power consumption. -
2. What are the advantages and disadvantages of IGBT?
IGBT combines many advantages of BJT and MOS tube:
High voltage and current handling capability.
Extremely high input impedance.
Can switch high current at low voltage.
Voltage control, no input current and low input loss.
Simple gate drive circuit, reducing drive requirements.
Easy to turn on by applying positive voltage and turn off by zero or negative voltage.
Extremely low on-resistance.
High current density, making the chip size smaller.
Higher power gain than BJT and MOS tube.
Faster switching speed than BJT.
Can switch high current levels with low control voltage.
Bipolar nature enhances conductivity and improves safety.
However, IGBT also has some shortcomings:
Slightly slower switching speed than MOS tube.
Unidirectional, cannot directly handle AC waveform, requires additional circuit.
Cannot block higher reverse voltage.
Higher cost than BJT and MOS tube.
PNPN structure is similar to thyristor, with latching problem.
Compared with PMOS tube, the turn-off time is longer. -
3. What are the specific application scenarios of IGBT?
IGBT has a wide range of applications, covering a wide range of fields. Here are some of the main applications:
(1) Frequency converter: IGBT is commonly used in frequency converters to convert DC power into AC power with adjustable frequency and adjustable voltage to control the speed and operating state of the motor. This capability makes IGBT very popular in applications that require precise control of motor speed and operating state.
(2) Inverter: IGBT inverter is used to convert DC power into AC power, such as converting DC power into AC power in solar power generation systems to power homes and businesses. In addition, it can handle high voltage and current levels, making it very suitable for these applications.
(3) Power transmission and distribution: IGBT also plays an important role in power transmission and distribution systems, especially in converters and inverters of high voltage direct current (HVDC) systems, providing efficient and reliable power conversion.
(4) Industrial and household appliances: IGBT is also widely used in industrial and household appliances, such as variable frequency air conditioners, washing machines, refrigerators, etc. These devices require precise power control and conversion, and IGBT meets these needs.
(5) Rail transit: IGBT devices have become the mainstream power electronic devices for traction converters and various auxiliary converters of rail transit vehicles. In the rapid development of rail transit, the role of IGBT cannot be ignored.
(6) Smart grid: IGBT is widely used in the power generation, transmission, substation and power consumption of smart grids. For example, rectifiers and inverters in wind power generation and photovoltaic power generation all require IGBT modules.
(7) New energy vehicles: IGBT modules play a vital role in electric vehicles and are core technical components of electric vehicles and charging piles. They are mainly used in high-power DC/AC inverters in electric control systems to drive automotive motors, low-power DC/AC inverters in vehicle air conditioning control systems, and switching elements in charging piles.
(8) Renewable energy systems: IGBT is also widely used in renewable energy systems such as solar and wind power inverters, helping to efficiently convert DC power into AC power.
In general, the application scenarios of IGBT cover almost all fields that require power control and conversion. With the continuous advancement of technology and the continuous expansion of the market, the application prospects of IGBT will be broader. -
4. What are the application fields of IGBT?
The main application areas of IGBT power semiconductors include:
(1) Motor control: In the field of motor control, IGBT, as the core device of the inverter, can convert DC power into AC power with adjustable frequency, thereby driving the motor for precise control. Whether it is a large motor on an industrial production line or a drive motor in a new energy vehicle, it is inseparable from the support of IGBT. In addition, IGBT also plays an important role in the high-power DC/AC inverter of the electric control system and is the key to achieving efficient operation of the motor.
(2) Power electronics: IGBT is one of the core devices in the field of power electronics and is widely used in various power supply, battery charging, power management, power conversion, power regulation, power protection, power filtering, power distribution, power control and power monitoring systems. Its high reliability, simple drive, easy protection and high switching frequency make it one of the most competitive devices in power electronics systems.
(3) New energy field:
In the field of new energy, the application of IGBT is becoming more and more extensive. In photovoltaic and wind power equipment, IGBT is the core component of the inverter, which can convert solar energy and wind energy into stable electricity to supply the power grid. In new energy vehicles, IGBT modules are core technical components of electric vehicles and charging piles, accounting for nearly 5% of the cost of electric vehicles and about 20% of the cost of charging piles. At the same time, IGBT also plays an important role in energy storage systems to ensure efficient conversion and storage of energy.
(4) Rail transit field: IGBT is the mainstream power electronic device for traction converters and various auxiliary converters. AC transmission technology is one of the core technologies of modern rail transit, and IGBT is one of the most core devices in traction converters.
