This demonstration shows a current-controlled buck converter with a resistive load. PLECS: Buck Converter with Peak Current Control This demo model is particularly useful to implement any kind of parameter sweep in other models as the basic structure serves as a good starting point. It performs a sweep of the inductor value in a simulation script. This demonstration is based on the demo model "Buck Converter with Analog Controls" in the PLECS demo models library. PLECS: Buck Converter with Parameter Sweep This can be done by performing an AC Sweep Analysis, which inherently first executes a Steady-State Analysis, or alternatively, using Multitone Analysis, which does not execute a Steady- State Analysis.
3 SWEEP DEMO HOW TO
This demonstration shows how to obtain the loop gain of a voltage-regulated buck converter with a resistive load. PLECS: Buck Converter with Loop Gain Analysis By looking under the mask (Ctrl+U) of the PID Controller block, two further masked subsystems contain the S- and Z-domain controllers. The controller block uses a configurable subsystem that can be toggled between a continuous and discrete proportional integral derivative (PID) control scheme.
This demonstration shows a buck converter with a digital controller implementation. PLECS: Buck Converter with Digital Controls The current control is based on a constant on-time and implemented using the PLECS State Machine block. The demonstration shows a buck converter with cascaded voltage and current controller. PLECS: Buck Converter with Constant On-Time Control
The transfer function can be calculated by performing an AC Sweep or Impulse Response Analysis, which both inherently first execute a Steady-State Analysis, or alternatively, using the Multitone Analysis, which does not execute a Steady-State Analysis. This demonstration shows how to perform a Steady-State Analysis and use small-signal analysis to obtain different open-loop transfer functions for an unregulated buck converter. PLECS: Buck Converter with Analysis Tools The analog controller is implemented in PLECS with electrical circuit components the pulse generation is performed by comparing the controller output voltage against generated a sawtooth signal. This demonstration shows a buck converter with a resistive load. PLECS: Buck Converter with Analog Controls The machine is initially sped up to a steady-state speed, and the shape on the back electromotive force (EMF) is observed. This demonstration shows an inverter-fed, current-controlled brushless DC (BLDC) machine. A nested controller with an outer voltage loop and an inner current loop is used. The bridgeless PFC topology replaces a conventional two-stage PFC circuit, and in doing so, provides higher converter efficiency. This demonstration shows a single-phase AC/DC bridgeless power factor correction (PFC) boost rectifier circuit. Tags: #Mechanical, #Controls, #Motor-Drives The machine is being accelerated and decelerated and is running in both motoring and generating modes. This demonstration illustrates a speed-controlled synchronous machine connected to a battery pack via a boost converter stage that precedes the active front end. Tags: #Thermal, #Controls, #Tools, #Power-Supplies A Steady-State Analysis is also setup to determine the final operating temperatures within seconds.
3 SWEEP DEMO FULL
Component loss descriptions are included to allow the thermal behavior of the MOSFET, boost diode and full bridge rectifier to be investigated. The simulation combines the electrical power circuit, the control with a standard IC and the thermal behavior of the semiconductors. The AC input voltage may vary between 85 and 265 Vrms and the controlled output voltage is 390 V DC. This demonstration shows a 300 W switched-mode power supply with a thermal model for the PFC and rectifier stages. PLECS: Boost Converter with PFC and Thermal Model
Design tradeoffs, such as switching frequency vs. The user can experiment with different circuit parameters to operate the converter in either continuous conduction mode (CCM) or discontinuous conduction mode (DCM). This demo model shows a boost converter with a resistive load operated in open loop. This demo model demonstrates PLECS Blockset specific features such as integrating a PLECS Circuit block with controls at the Simulink level, connecting multiple PLECS Circuit blocks at the Simulink level via both physical and signal wire connections, customizing the PLECS Circuit block and defining mask parameters, and including initialization commands at the Simulink level and subsystem mask level.
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