MOSFET transistors are often used inproduction of microcircuits. These elements are designed to control the voltage of the circuit. Devices operate on the principle of changing polarity. To date, many modifications have been released, which differ in the parameter of output resistance, sensitivity and conductivity. By design, they are similar.
Low conductivity models consist of twocells The conductors are installed in the bottom of the case. Inside the element are channels with diodes. The scope of transistors is very extensive. Most often they are found in power supplies.
IRG4BC10K Series Transistors
This designation of transistors suggests thatThey are suitable for switches. They are installed on high-conductivity chip. Modes of operation of the transistor can be adjusted by changing the frequency in the circuit. In this case, the marginal sensitivity index is 5 mV. The output voltage of the submariners can withstand 12 V. If we consider the modifications with connectors, then the transistors are connected through a modulator. Capacitors to improve conductivity are used only pulse type.
To solve problems with negative polarityVaricaps are needed. It is also important to note that these transistors are suitable for video senders. In this case, the elements are able to work only with field capacitors. In this case, the conductivity of the current will not exceed 10 microns. In power supplies, the use of transistors is limited to models up to 15 V.
IRG4BC8K series transistor parameters
The presented MOSFET N-channel seriestransistor is in great demand. First of all, it is important to note that it belongs to the class of high-frequency elements. The sensitivity parameter of the models is 6 mV. The current conductance averages 12 microns. For switch models are bad. They also quickly overheat in the sides of the power supply.
Devices can work only with absorbingby filters. Most often, modifications are found in controllers and regulators. Chip for them are selected series PP20. If we consider a standard controller with the specified transistor, then the capacitors are of the continuous type. Filters in this case are taken with the lining. If we consider the regulator circuit, the transistor is installed behind open capacitors. The conductivity index should be no more than 15 microns. Maximum allowable current overload - 3 A.
Using IRG4BC17K models
This designation of transistors suggests thatthey are used for switches and receivers. In this case, the conductivity of the current fluctuates around 5.5 microns. The sensitivity of the modification depends on the type of capacitors selected. If we consider the scheme of a standard receiver, then they are used field type. In this case, the sensitivity of the element varies around 16 mV. It is also important to note that filters are only allowed to be of the absorbing type.
Допустимый уровень перегрузки в такой ситуации не will exceed 3.5 A. The output voltage of the specified transistors in the receivers is kept at 14 V. If we consider the circuit with a switch, then the capacitors are applied of a pulse type. In total, the device will need two filters. Directly the transistor is installed behind the winding. Current conduction index should be no more than 8 microns.
If we consider a modification with operationalcapacitors, the above parameter will not exceed 10 microns. How to check MOSFET transistor? This can be done using a conventional tester. The specified device immediately shows a violation of the integrity of the conductors.
Features of the model IRG4BC15K
Power transistors of the presented series are suitablefor PP20 chips. They are used in various regulators to control engines. Modes of operation of the transistor is easy to adjust due to the frequency change in the circuit. If we consider the scheme of a conventional model, the output voltage on the conductors is 15 V. On average, the current conductance is 4.5 microns.
The sensitivity of the element depends oncapacitors as well as an adapter. It is also important to consider the indicator of the output resistance in the circuit. If we consider the modification with a grid adapter, then the sensitivity of the element is equal to no more than 20 mV. The use of triodes in the circuit is prohibited. In order to increase the conductivity of the transistor, rectifiers are used.
If we consider the regulator on broadbandadapter, the sensitivity index is no more than 15 mV. It is also important to note that the output voltage fluctuates around 10 V. In this case, the threshold resistance is about 20 ohms. In power blocks, the use of transistors is limited to devices up to 15 V.
Scope of the transistor IRG4BC3K
The transistors of the presented series are suitable forswitches of various capacities. Also devices are actively used in receivers. The throughput of modifications varies around 7 microns. In this case, the sensitivity depends on the capacitors. If we consider a standard switch, then they use a single junction type in it. In this case, the sensitivity index will not exceed 3 mV. If we consider devices with two-junction capacitors, then in this case the above parameter can reach 6 mV.
It is also important to note that the transistor workcapable only with transient adapters. In some cases, insulators are installed to increase voltage stability. Filters are most often used conductor type. If we consider the receiver circuit with the above transistors, then the output voltage should not exceed 12 V. In this case, it is more expedient to select the capacitors of the operating type. On average, the sensitivity will be 12 mV.
Installing the transistor in the drive
MOSFET transistor in drives smallpower is allowed to install through adapters. In this case, capacitors are used with filters. The converter for normal operation of the system is selected without a rectifier. In some cases, a dynistor is installed.
If we consider a 10 kW drive, thenThe transistor must be with a kenotron. The maximum output voltage will reach 15 V. However, you should also consider the resistance in the circuit. On average, this parameter does not exceed 50 ohms.
Transistor in 5 V power supply
In 5 V power supply units MOSFET transistorallowed to install without filters. Directly adapters are selected control type. Some modifications use a damper. In this case, the conductivity parameter will not exceed 5.5 microns. Sensitivity, in turn, depends on the type of capacitors. In 5 V units, they are often used as an integral type. There are also modifications with impulse elements. How to replace the transistor in the power supply for 5 V? If necessary, this can always be done by installing the extender.
Transistors at 10 V blocks
To 10 V power supplies MOSFET transistorinstalled with absorbing filters. Capacitors are most often used of the pulsed type. The parameter of the output resistance in the circuit should not exceed 50 Ohms. It is also important to note that open adapters are prohibited. In this case, they can be replaced by a comparator. The negative resistance indicator does not exceed 40 ohms.
Devices in a 15 V block
In the power supply 15 V MOSFET transistorallowed to install with high bandwidth. If we consider modifications without amplifiers, they are selected with an adapter. Capacitors for the circuit, many experts recommend taking duplex type. In this case, the sensitivity of the element will be 35 mV. In turn, the overload rate will be no more than 2.5 A.
In order to increase the conductivity of the current,pulsed capacitors are used. However, it is important to note that they consume a lot of electricity. Also, pulse-type capacitors exert additional load on the converter. To solve the presented problem, a triode is installed near the transistor. It is more expedient to use a triode of the grid type. Also on the market are modifications with an inverter.
Transistors in dimmers
Lighting controls are often used.low sensitivity transistors. All this is necessary in order to solve problems with sudden changes in temperature. In this case, the negative resistance indicator should not exceed 50 ohms. Capacitors for systems are selected binary type. Many experts advise against the use of duplex adapters.
