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Showing Results For: Voltage Controllers

Voltage Controllers

Voltage controllers are electronic devices that control a circuit’s consistent voltage and are designed to provide voltage management applications. They convert a consistent voltage input into a variable voltage output transmitted to resistive loads. Like voltage regulators, they also control the voltage output. However, voltage regulators function slightly differently as they generate variable outputs like variable voltage or act like switches for power diversion. 

Furthermore, voltage controllers share similarities with voltage converters in all their integrated circuitry. Additionally, these controllers feature AC-DC or DC-DC conversion types.

Types of Voltage Controller

These controllers are broadly categorised into single-phase and three-phase voltage controllers. 

  • Single-Phase: They are designed to control power supplies ranging from up to 230 RMS at 50–60 Hz.
  • Three-Phase: They are made to control 400 RMS voltage and a 50–60 Hz power supply. 

Other types include:

  • PWM controller
  • Buck controller
  • Step-down voltage controller
  • Boost controller
  • Flyback controller.

What are the Typical Applications of a Voltage Controller?

Voltage controllers are widely suitable for driving MOSFETs with a wide range of applications that necessitate power and voltage management. They are commonly found in:


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ICE2QR0665ZXKLA1, Infineon
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TEA1721AT/N1,118, NXP
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NCP43080DDR2G, onsemi
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TS34063CS RLG, Taiwan Semiconductor

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IR35217MTRPBF, Infineon

IR35217MTRPBF, Infineon

The Infineon IR35217 is a dual loop, digital, multi-phase buck controller designed for CPU voltage regulation - it can support up to 8 phases and allows flexible phase assignment between the two loops. The IR35217 can be configured to enter 1 or 2-phase operation and active diode emulation mode automatically or by command. It offers digitally programmable load line thereby eliminating the need for any external load line setting component. The controller is designed to work with integrated and DCR current sense power stages and provides accurate input and output current reporting. Digitally programmable load line - no external components are needed to set the load line Infineon Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost Auto-phase detection with PID coefficient auto-scaling I2C/SMBus/PMBus system interface for reporting of temperature, voltage, current and power telemetry for both loops
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ICE3AR2280VJZXKLA1, Infineon

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ICE2QR2280G1XUMA1, Infineon

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The Infineon integrated power management IC with 800V avalanche rugged CoolMOS™, startup cell and QR current mode flyback PWM controller in DSO-16/12 package. Capable for 25.5W SMPS design. This derivative has a lower UVLO voltage (9.85V) so that it can easier be used to optimize system design. The quasi QR CoolSET™ series continues to deliver design agility and miniaturization. Upon the successful F3 CoolSET™, this new series offer the possibility of higher efficiency and better EMI performance. Integrated power IC with 650V avalanche rugged CoolMOS™, startup cell and QR flyback PWM controller Digital frequency reduction with decreasing load, Cycle-by-cycle current limitation with fold-back correction Built-in digital soft-start Active burst mode for lowest standby power <50mW
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The Infineon integrated power management IC integrated with 800V avalanche rugged CoolMOS™, startup cell and fixed frequency current mode flyback PWM controller in DIP-7 package. Capable for 24W SMPS design. The additional features include input CCM mode, latch enable, fast latch reset, brownout feature, active burst mode operation to achieve extremely low standby power consumption, frequency jittering to obtain low EMI, adjustable blanking window to facilitate load jumps and high voltage start-up cells that allows you to quickly power up your controller from the rectified line. Peak current control (current mode) 100kHz fixed switching frequency with frequency jitter (low EMI) Adjustable blanking window Enhanced active burst mode (low standby power <100mW) Enhanced integrated protection functions (auto-restart)
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ISL68137IRAZ-T7A, Renesas Electronics

ISL68137IRAZ-T7A, Renesas Electronics

The Renesas Electronics voltage controllers is a two-phase buck converter regulator implementing with embedded gate drivers. The two-phase buck converter uses two interleaved channels to effectively double the output voltage ripple frequency, and thereby reduce output voltage ripple amplitude. Advanced linear digital modulation scheme Internal gate driver Microprocessor voltage identification input
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