DC-DC|Basic
Switching Regulator Basics
2015.09.03
Switching regulators, due to their high power conversion efficiency and flexibility, have made inroads into a growing number of devices and become the preferred power supply units. Previously, a standard practice for switching power supply units was to purchase completed modules or units. In recent years, however, with the availability of ICs for a wide variety of switching power supplies, the strategy employed by electric circuit designers has shifted to the so-called “on-board design” in which a switching power supply unit is built into the circuit board. That said, it is also a fact of life that the various issues presented by switching power circuits, different from the linear regulator, pose a significant challenge to the designer.
In this installment, focusing on the step-down switching regulator, its basic aspects, such as its operation and functions are explained.
【Download Documents】Switching Regulator Basics
The basics of step-down switching regulators, including their operation and functions, are explained. Comparison with linear regulators, synchronous rectification and diode rectification, control method, auxiliary functions, etc. are also explained.
List of articles related to the「Switching Regulator Basics」
- Types of Switching Regulators
- Advantages vs Disadvantages in Comparison with Linear Regulator
- Supplement-Current Paths during Synchronous Rectifying Step-Down Converter Operation
- Operating Principles of Buck Switching Regulator
- Differences between Synchronous and Nonsynchronous Rectifying DC-DC Conversion
- Control Methods (Voltage Mode, Current Mode, Hysteresis Control)
- Efficiency Improvements at Light Load for the Synchronous Rectifying Type
- Protective and Sequencing Functions
- Considerations on Switching Frequencies
- Behavior when Vin Falls Below Vout
- Supplement-Protective Function: Output Pre-bias Protection
Download Technical Documents
Switching Regulator Basics
The basics of step-down switching regulators, including their operation and functions, are explained. Comparison with linear regulators, synchronous rectification and diode rectification, control method, auxiliary functions, etc. are also explained.
DC-DC
-
Basic
- Linear Regulator Basics
-
Switching Regulator Basics
- Types of Switching Regulators
- Advantages vs Disadvantages in Comparison with Linear Regulator
- Supplement-Current Paths during Synchronous Rectifying Step-Down Converter Operation
- Operating Principles of Buck Switching Regulator
- Differences between Synchronous and Nonsynchronous Rectifying DC-DC Conversion
- Control Methods (Voltage Mode, Current Mode, Hysteresis Control)
- Efficiency Improvements at Light Load for the Synchronous Rectifying Type
- Protective and Sequencing Functions
- Considerations on Switching Frequencies
- Behavior when Vin Falls Below Vout
- Supplement-Protective Function: Output Pre-bias Protection
-
Concluding Remarks
- Design
- Evaluation
- Application
- Product Information
- FAQ