Which one is better for changing a 12V DC motor speed, PWM or a high efficient buck converter? - Quora
![Figure 1 from Robust Passivity-Based Control of a Buck–Boost-Converter/DC- Motor System: An Active Disturbance Rejection Approach | Semantic Scholar Figure 1 from Robust Passivity-Based Control of a Buck–Boost-Converter/DC- Motor System: An Active Disturbance Rejection Approach | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/bba5386f9210f2996d403f09224926d860c763d7/2-Figure1-1.png)
Figure 1 from Robust Passivity-Based Control of a Buck–Boost-Converter/DC- Motor System: An Active Disturbance Rejection Approach | Semantic Scholar
![Adaptive controller design for speed control of DC motors driven by a DC-DC buck converter | Semantic Scholar Adaptive controller design for speed control of DC motors driven by a DC-DC buck converter | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/76d53b3cf77e15eefdf8014fbaf813bb3b9842af/2-Figure1-1.png)
Adaptive controller design for speed control of DC motors driven by a DC-DC buck converter | Semantic Scholar
![Figure 1 from A DC/DC Buck-Boost Converter–Inverter–DC Motor System: Sensorless Passivity-Based Control | Semantic Scholar Figure 1 from A DC/DC Buck-Boost Converter–Inverter–DC Motor System: Sensorless Passivity-Based Control | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/42423f521d166529e8f09473e9bafe69dfcfb032/2-Figure1-1.png)
Figure 1 from A DC/DC Buck-Boost Converter–Inverter–DC Motor System: Sensorless Passivity-Based Control | Semantic Scholar
1 Pcs DC5-35V 5A PWM DC Motor Speed Controller & 1 Pcs CNC DC DC Buck Boost Converter CC CV 0.5-30V 4A Power Module - buy 1 Pcs DC5-35V 5A PWM DC
![Energies | Free Full-Text | Robust Tracking Controller for a DC/DC Buck-Boost Converter–Inverter–DC Motor System Energies | Free Full-Text | Robust Tracking Controller for a DC/DC Buck-Boost Converter–Inverter–DC Motor System](https://www.mdpi.com/energies/energies-11-02500/article_deploy/html/images/energies-11-02500-g001.png)
Energies | Free Full-Text | Robust Tracking Controller for a DC/DC Buck-Boost Converter–Inverter–DC Motor System
![Universal DC-DC Buck-Boost Converter Regulator 400W - DC-DC Converters, Step-Up Voltage Regulators, Buck-Boost Universal DC-DC Buck-Boost Converter Regulator 400W - DC-DC Converters, Step-Up Voltage Regulators, Buck-Boost](https://elecdan-converter.com/wp-content/uploads/Example-2-of-application-using-our-innovative-buck-boost-regulator.jpg)
Universal DC-DC Buck-Boost Converter Regulator 400W - DC-DC Converters, Step-Up Voltage Regulators, Buck-Boost
![Buck Converter Based Starter and Speed Controller for a DC Motor using PID Controller | Semantic Scholar Buck Converter Based Starter and Speed Controller for a DC Motor using PID Controller | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/e75dd949187c890f31ae588902237d76843c8ffb/1-Figure1-1.png)
Buck Converter Based Starter and Speed Controller for a DC Motor using PID Controller | Semantic Scholar
![DIY BOX Shell DC DC Buck Boost Converter CC CV Power Module Adjustable Regulated laboratory power supply variable - AliExpress Home Improvement DIY BOX Shell DC DC Buck Boost Converter CC CV Power Module Adjustable Regulated laboratory power supply variable - AliExpress Home Improvement](https://ae01.alicdn.com/kf/H1ec53e0319b44ff591086b0942bfbeacY/DIY-BOX-Shell-DC-DC-Buck-Boost-Converter-CC-CV-Power-Module-Adjustable-Regulated-laboratory-power.jpg)