15 PWM Controller Manufacturers in 2024
This section provides an overview for pwm controllers as well as their applications and principles. Also, please take a look at the list of 15 pwm controller manufacturers and their company rankings. Here are the top-ranked pwm controller companies as of November, 2024: 1.Morningstar Corporation, 2.Analog Devices, Inc., 3.Jai Sunlight Systems.
Table of Contents
What Is a PWM Controller?
A PWM (pulse width modulation) controller is a device that adjusts the pulse width of current or voltage, maintaining a constant frequency. This modulation alters the duty cycle to control the duration of the 'on' and 'off' states of the pulses. The duty cycle is calculated by dividing the pulse width by the total cycle time. Semiconductor devices are utilized for PWM switching.
Uses of PWM Controllers
PWM controllers regulate motor speeds across various types, including AC, DC, and synchronous motors. In the manufacturing industry, AC motors often incorporate feedback from speed detectors, like pulse generators, to adjust the motor's speed accurately. The feedback signal is processed to determine the precise voltage required, which is then applied using the PWM controller integrated into the board.
Principles of PWM Controllers
PWM controllers generate output pulses by modulating a sine wave (the control source) with a sawtooth wave (carrier) using a comparator made of operational amplifiers. A pulse is created when the sine wave exceeds the sawtooth wave and is turned off when it is less. This process produces pulses that are denser at higher sine wave values and sparser at lower ones. Switching devices, such as transistors and thyristors, are employed for this on/off mechanism, functioning through signals received at their gates.
Structure of PWM Controllers
The structure of a PWM controller includes three primary components: a data register, a counter, and a comparator. Each period and duty register is associated with a specific comparator, whose outputs connect to the set and reset pins of a flip-flop circuit. This configuration allows for precise control of the PWM signal's cycle width and pulse width, enabling the output of a consistent PWM signal.
Other Information on PWM Controllers
Precautions When Using a PWM Controller
PWM control benefits from reduced stress on transistors and currents by only allowing current flow during the 'on' phase of power pulses. However, a drawback is the potential for a self-induction effect caused by the motor's coil inductance when PWM control is off, leading to significant electromagnetic interference and potential damage. Implementing flywheel diodes in the circuit mitigates these issues by redirecting reverse power back to the motor.
List of 15 PWM Controller Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- China
- India
- Japan
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Analog Devices, Inc.
PWM Controllers
Manufacturer Overview
Incorporated in 1965, Analog Devices, Inc. designs, manufactures, tests, and markets integrated circuits (ICs), software, and subsystems that leverage analog, mixed-signal, and digital signal processing technologies. The company provides data converter products, power management and reference products for power conversion, driver monitoring, sequencing, and energy management applications in the automotive, communications, industrial, and high-end consumer markets. In addition, the company provides digital signal processing and system products for high-speed numeric calculations. It serves clients in the industrial, automotive, consumer, instrumentation, aerospace, and communications markets.
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Morningstar Corporation
PWM Solar Charge Controllers
Manufacturer Overview
Morningstar Corporation, established in 1993 in the USA, is a manufacturer that specializes in solar charge controllers, inverters, and accessories for off-grid systems, catering to diverse industries, but especially in the oil and gas industry. The products that company currently offers includes solar charge controllers, off-grid inverters, ready rail products, and accessories. It holds H a2 LOC certification on all models, with ATEX quality assurance and IECEX quality assurance registration. Company is certified for hazardous locations and has proven effectiveness in telecommunications, mining, security, transportation, and other sectors.
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Renesas Electronics Corporation.
AC/DC & Isolated DC/DC Converters
Manufacturer Overview
Renesas Electronics Corporation was established in 2002 and is headquartered in Tokyo, Japan. Renesas is a global research, design, and manufacturer of semiconductors used in industries spanning automotive, consumer electronics, the internet of things, power & energy, and industrial sectors. Renesas manufactures both analog and digital products. Analog products include amplifiers, audio & video devices, data converters, PLC, and switches & multiplexers. Digital products include microcontrollers, memory components, sensors, wireless connectivity products, and others. Renesas also offers design resources such as kits, development tools, partner programs, and design tools.
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STMicroelectronics
PWM Controller
Manufacturer Overview
ST Micro Electronics is a global semiconductor company serving customers with innovations to have a positive impact on people's lives. Their product line is micro electronic systems, such as switches, controllers, sensors and drivers. The main selling point of ST Micro Electronics is its provision of sustainable products, and introducing their electronics to create a more sustainable world. The company, as well as providing the electronic devices, also provides software and support, ensuring that all fields are covered to provide a fully provide a supported and strong relationship with their customer base. ST Micro Electronics believe that technology plays a key role in helping to solve environmental and social challenges, which is why their semiconductor technologies start with their employees, their customers and partners.
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CHANGZHOU SUPEREN NEW ENERGY TECHNOLOGY CO.,LTD
PWM Solar Controller
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CIXI CAIYUE PHOTOVOLTAIC TECHNOLOGY CO.,LTD
PWM Solar Charge Controllers
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PWM Controller Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Morningstar Corporation |
22.7%
|
| 2 | Analog Devices, Inc. |
18.2%
|
| 3 | Jai Sunlight Systems |
9.1%
|
| 4 | Ningbo Kosun New Energy Co.,Ltd |
4.5%
|
| 5 | Shandong Xinxu Group Corporation Ltd |
4.5%
|
| 6 | Shanghai RAGGIE Power Co., Ltd. |
4.5%
|
| 7 | Shenzhen ShengShi TianHe Electronic Technology Co.,Ltd |
4.5%
|
| 8 | Techno Sphere Inc. |
4.5%
|
| 9 | CHANGZHOU SUPEREN NEW ENERGY TECHNOLOGY CO.,LTD |
4.5%
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| 10 | CIXI CAIYUE PHOTOVOLTAIC TECHNOLOGY CO.,LTD |
4.5%
|
Derivation Method
The ranking is calculated based on the click share within the pwm controller page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- Renesas Electronics Corporation.: 21,017
Newly Established Company
- Jiaxing Solarway New Energy Co.,ltd.: 2016 (8 years ago)
- Techno Sphere Inc.: 2012 (12 years ago)
- Shenzhen ShengShi TianHe Electronic Technology Co.,Ltd: 2011 (13 years ago)
Company with a History
- RRT Electro Powwer P Ltd: 1992 (32 years ago)
- Morningstar Corporation: 1993 (31 years ago)
- Renesas Electronics Corporation.: 2002 (22 years ago)
PWM Controller Manufacturers in United States
*Including some distributors, etc.
Global Distribution of PWM Controller Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
China
|
6 | 50.0% |
India
|
3 | 25.0% |
United States of America
|
2 | 16.7% |
Japan
|
1 | 8.3% |
