What Are Solid State Modules?

By Author: huimultd
Total Articles: 8
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1. What is a Power Module
In this charpter you will learn what are solid state modules.

The power module (PM) is also called electronic power module, or solid state power module, which is a module that encapsulates power electronic components combination into a solid state structure according to a certain functional. Through the internal integrated circuit (IC) , the power module can output the power and adjust the power of the load . According to the main functions, we divide solid-state modules into solid state voltage regulation modules and solid state rectification modules.

1.1 Solid State Voltage Regulation Module
What is Solid State Voltage Regulation Module? More detail via www.@huimultd.com
The solid state voltage regulation module (also known as the solid state power voltage regulation module, the solid state power regulating module, the solid state voltage regulating module and the solid state power voltage regulator module) are used to adjust the voltage or power of the AC load. Generally, the solid state voltage regulating module is integrates the synchronous transformer, the power ...
... output circuit , the phase shift circuit, the detection circuit, and can be directly connected to the load to control it. Solid state voltage regulator modules are widely used into various fields, such as scientific research, experiment, detection, heating insulation, soft start.

The solid state phase-shift module (or solid state phase-shifting module) is a type of voltage-regulating module, but it can only output a phase-shifting signal and cannot be directly connected to the load. Generally, it requires a set of solid-state relays (or power thyristor circuits) and a synchronous transformer to achieve the voltage regulation function.

According to the phase, the solid-state voltage regulating module can be divided into: single-phase solid-state voltage regulator modules, three-phase solid-state voltage regulator modules.

According to whether the loop is closed, the solid-state voltage regulating module can be divided into closed-loop type and open-loop type (unclosed-loop type)

According to whether the strong current parts and weak current parts are isolated, the solid-state voltage regulating module can be divided into full isolation type and non-full isolation type.

According to the number of controlled loads (channels), the solid-state phase-shift module can be divided into: single channel solid-state phase-shift module (or single phase solid-state phase-shift module), dual channel solid-state phase-shift module, three channel solid-state phase-shift module (or three phase solid-state phase-shift module).

According to the external power output device, the solid-state phase-shift module can be divided into: external solid state relay type phase-shift modules, and external thyristor power circuit type phase-shift modules.

1.2 Solid State Rectification Module
What is Solid State Rectification Module? More detail via www.@huimultd.com
The solid state rectification module (or solid state rectifier module) uses power components (such as power diodes, power thyristors, rectifier bridges) to rectify Alternating Current (AC) into Pulsating Direct Current (Pulsating DC) or Rectified Alternating Current, whose direction (positive and negative) does not change, but the magnitude changes with time. In addition, Solid State Diodes and Rectifier Silicon are uncontrollable devices, and Semiconductor Control Rectifier and Unidirectional thyristor are controllable devices. Solid state rectification modules are widely used into various fields, such as the DC power supply of instruments, the input rectified power supply of PWM inverter, the excitation power supply of DC motor, the input rectification system of switching power supply, the soft-start capacitor charging system, the electric drive and auxiliary current, the inverter welding machine, the DC power charging system.

According to the phase, solid-state rectifier relays can be divided into: single-phase solid-state rectifier relays, three-phase solid-state rectifier relays.

According to the phase, solid-state bridge rectifiers can be divided into: single-phase solid-state bridge rectifiers, three-phase solid-state bridge rectifiers.

According to the amount of rectifier silicon (or diode), solid-state rectifier modules can be divided into: half-wave rectifier modules, full-wave rectifier modules (half-bridge rectifier modules), and full-bridge rectifier modules. The half-wave rectifier module has only one rectifier silicon (or diode), the full-wave rectifier module (half-bridge rectifier module) has two rectifier silicon (or diodes), and the full-bridge rectifier module has four rectifier silicon (or diodes). The full-wave rectifier modules have the similar function as the full-bridge rectifier modules, but the cost of the full-bridge type is higher than the full-wave type, and the requirements on the transformer are lower than the full-wave type.

According to whether the strong current parts and weak current parts are isolated, solid-state rectifier modules can be divided into fully isolated and non-fully isolated.

According to the composition of diodes and thyristors, solid-state rectifier modules can be divided into uncontrolled rectifier modules, fully-controlled rectifier modules and half-controlled rectifier modules. The output components of the uncontrolled rectifier module are completely composed of rectifier diodes. The output components of the fully controlled rectifier module are composed of thyristors. The output components of half-controlled rectification are composed of diode and thyristor.