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Engineering Reference Materials for AC Voltage Regulator Schematic
  • Technical Article: The AC Automatic Voltage Regulator

    – AVR: Guide and Comparison. The Operation, Application and Comparison of Automatic Voltages Regulators in AC Power Applications. 1. The AC Automatic Voltage Regulator. The automatic voltage regulator or AVR, as the name implies, is a device intended to regulate voltage automatically: that is to take

  • Technical Article: Automatic Voltage Regulators and Power Conditioners

    Voltage Regulator – AVR: Guide and Comparison. The Operation, Application and Comparison of Automatic Voltages Regulators in AC Power Applications. 2 Automatic Voltage Regulators and Power Conditioners. An AVR is at the heart of devices often called power conditioners or power stabilizers

  • Using AC PWM Drives on Non-Standard Voltages and Frequencies

    Often, there may arise the need to apply an AC PWM drive1 to input voltages such as 200, 208, 380, 415 and possibly other levels, as well as input frequencies such as 50 Hz. The AC PWM regulator utilizes a switching power supply for control power that is sourced from a DC bus. This gives the unit

  • The lowdown on lowdropout regulators

    powering the microprocessor for a simple reason. The amount of voltage available to power the primary system limits the size of the possible overhead. Most embedded applications get power from either high-voltage multiphase or low-voltage single-phase sources. The ac voltage is transformed

  • Technical Article: Double Conversion Electronic Voltage Regulator Operation

    The double conversion electronic voltage regulator differs significantly in operation from the tap switching type EVR. The double conversion EVR uses a rectifier to convert AC power to DC and then uses an inverter to convert the DC power back to AC. Voltage regulation is obtained in one of two ways

  • Technical Article: Automatic Voltage Regulator Phases and Phase Regulation

    Automatic voltage regulators can be designed for single phase or three phase AC applications. It is common for utilities to use single phase automatic voltage regulators ganged together to provide voltage regulation for three phase. These are often "can-type" units pole-mounted outdoors. Single

Discussions about AC Voltage Regulator Schematic
  • Re: Regulator Circuit

    By "one phase" do you mean one side of a center-tapped secondary transformer? By "all phases" do you mean both ends of a center tapped secondary transformer? Are you attempting to feed the 7805 directly from the transformer or do you have a rectifier, such as a full wave or full wave bridge rectifie...

  • Re: How to Build an AVR for a Three Phase Generator?

    Hi everybody, I've been busy these days and I apologize for being late. Today I've been working on the project and I wish to share with you my findings: 1.As first, friend of mine brought the book that you have recommended. It is good to have it.The first ten pages have good hints about generators...

  • Small Gasoline AC Generator Theory

    Hi Now I have this schematic of a small gasoline AC generator. Could somebody explain to me how does this system regulate the output AC voltage? Thank´s...

  • Re: Controlled Saturable Reactors in Power Supplies

    Somewhat off topic, but your question brings to mind a battery charger/power supply I have, built by La Marche back in 1972 or so, that has two transformers, one of which is labeled a "saturable transformer" on the schematic. It is wired in series with the main power transformer, and supplies volta...

  • Re: Faulty Power Supply

    It's sounds like you've popped the voltage regulator. Imagine that there is a voltage regulator chip, or circuit, in there that gets 40V as an input and outputs a variable voltage. If the voltage regulator dies, then the raw 40V input will be on the output. I would take it apart and see what sort...

  • Re: low voltage from 12volt inverter/charger

    Well do you see that IC labeled U14 on the schematic? That's the charge regulating chip. You need to take your oscilloscope and read the duty cycle of the signal going to the charging transistor. Oh, you probably should first look at the AC to DC power supply stage of the charger circuitry and dete...

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Danaher Sensors & Controls - Specialty Products
STABILINE® Voltage Regulators

The WHR Series is the most extensive line of STABILINE ® Voltage Regulators Superior Electric has ever offered. WHR Series STABILINE ® Voltage Regulators maintain constant voltage to your equipment, even when the input voltage and system load vary widely. This line of regulators includes units for use on all AC power systems, up to 660 volt, currently in use throughout the world. An extensive range of standard sizes, features and options is available. Contact us to learn more

Weschler Instruments
AC Voltage & Current Data Logger

Extech has introduced a small, two channel TRMS AC data logger. The DL160 will simultaneously measure two AC voltage inputs, two AC current inputs or one voltage and one current input. Sample interval is programmable from 1 second to 24 hours. This handy recorder will store up to 256,000 readings for later download through the USB interface. Windows software is included for data management and analysis. Downloaded data can also be exported to a spreadsheet. The small size and internal battery...

Dart Controls, Inc.
Variable AC Voltage Supply 55AC

A dependable, economical and compact variable AC voltage supply manufactured especially for the vibratory feeder, fan, pump, heating, and lighting industries. All models feature single-phase AC input and fully variable AC output. The enclosed version comes with a rugged housing, power on/off switch, power on indicator lamp, front access fuse, as well as convenient input and output cords and plugs. The heart of the control is a triac fired in a manner to adjust phase and thereby vary speed...