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Voltage dividers and voltage references provide highly-accurate reference voltages for calibration and testing purposes. Search by Specification | Learn More
IC voltage regulators are three-terminal devices that provide a constant DC output voltage that is independent of the input voltage, output load current, and temperature. IC voltage regulators are used in power supplies that hold their output voltage constant over a wide range of load variations. Search by Specification | Learn More
Frequency-to-voltage converters accept a signal and convert its frequency to a corresponding analog voltage level. Search by Specification | Learn More
High voltage diodes are designed for use in high-voltage applications. Search by Specification | Learn More
Integrated circuit (IC) linear voltage regulators use voltage-controlled sources to force a fixed voltage to appear at their output terminal. Search by Specification | Learn More
Electrical voltage sensors measure AC and/or DC voltage levels. They receive voltage inputs and provide outputs as analog voltage signals, analog current levels, switches, or audible signals. Search by Specification | Learn More
Transient voltage suppressor (TVS) diodes are designed to limit over-voltages. They can dissipate high amounts of transient power in a short period of time. Search by Specification | Learn More
Voltage testers check for difference in potential in electrical circuits. Search by Specification | Learn More
High voltage capacitors are used for storing charge and energy in high voltage applications. Search by Specification | Learn More
Voltage references are electronic circuits that produce a constant output voltage (reference) that is used to compare other voltages in a system. Search by Specification | Learn More
Voltage-to-frequency converter chips provide a signal frequency output as a function of an analog input voltage. Learn More
Voltage regulators are power converters that provide voltage control capabilities. They accept a voltage that varies over a given range and generate an output voltage that does not vary. Search by Specification | Learn More
Voltage transformers and potential transformers are used to measure voltage in electric circuits. Their main role is to condition (step down) the voltage to be measured to levels suitable for the measuring instrument. Learn More
High voltage connectors are used in applications that require the transfer of high voltage signals. Learn More
High voltage relays are used to transfer power for high voltage and high frequency applications. They are heavily insulated and consist of strong materials to increase contact life. Search by Specification | Learn More
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Flow Calibration Lab Services Thompson Equipment Company, Inc.
Scott Health & Safety Authorized Service Center Process Control Outlet
Fluke 725 Multifunction Process Calibrator Fotronic Corporation / Test Equipment Depot
PTT Torque Analyzer Mountz, Inc.
Altek 334A Process Loop Calibrator Fotronic Corporation / Test Equipment Depot
Altek 942 Frequency Calibrator with Totalizer Fotronic Corporation / Test Equipment Depot
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The new ECOMOS series of n-channel and p-channel MOSFETs are designed to meet the prescribed operation at lower gate drive voltages. ROHM's advanced proprietary processing has produced devices that exhibit RDS(ON) values as much as 90% lower than comparable devices when operated at ultra-low 1.5V or 1.2V gate drive (VGS) voltages. (read more)
PV Series for DC voltages and solar applications.
Common mode DC Surge arrester for Photovoltaic protection against surges at the boundaries from lightning protection zone 0B-1 and higher. (read more)
CKT high-voltage wiring analyzers have been designed to provide Users with state-of-the-art wiring testing solutions for virtually any testing requirement. (read more)
The "A" Series of high-voltage regulated DC-DC high-voltage power supplies address the needs of the miniature PCB-mount, regulated high-voltage-power-supply user. Designed and built utilizing state of the art power conversion topology, these units feature surface mount technology and encapsulation techniques providing high reliability and low cost. (read more)
When it comes to voltage regulation for large industrial or commercial applications, some confusion often arises about two different types of automatic voltage regulators (AVR): the medium voltage mechanical AVR and the low voltage mechanical or electronic AVR. The real confusion is not so much about the regulators themselves but the fact that both types are called voltage regulators and (read more)
The new PREMA high voltage operational amplifier PR2201 for supply voltages of up to 80V single supply or up to ±40V with a maximum output current of ±6mA is now available. (read more)
Vitrek's 4600A High Voltage Digital Voltmeter Series offer precision HV measurements to 70KVDC/AC. They are ideal for Calibrating Hipot Testers, HV power supplies, Insulation Testers, HV Transformers Testers and other high voltages sources. The meter's designed in accuracy is more than adequate to calibrate all HV application testers. CE mark Certified to EN61010. (read more)
Voltage regulating transformers (VRTs) protect sensitive equipment from unregulated utility power when a UPS goes into bypass operation. The bypass conditioner regulates voltage to equipment or bus systems, minimizes voltage transients, reduces line noise and provides transient surge suppression other conditioning for the incoming utility power. (read more)
The "E" Series of high-voltage, regulated DC-DC converters addresses the needs of the precision high-voltage-power supply user. The "E" Series is designed and built utilizing state-of-the-art power conversion topology. These units feature surface mount technology and encapsulation techniques providing high reliability and low cost. (read more)
Free Whitepaper - Fixing High Voltage - Overvoltage Problems
Overly high voltage levels can be detrimental to electrical devices, particularly electronics. However, voltages that are slightly above nominal may improve the efficiency of some devices like motors and power supplies. Problems with high voltage levels usually occur when they are unexpected or uncontrolled.
... (read more)| Part # | Distributor | Manufacturer | Product Category | Description |
|---|---|---|---|---|
| 7812 | Newark | MCM | All Supplier Direct Ship | IC TO-220 VOLTAGE REGULATOR 12V POSITIVE |
| SG7812T | Digi-Key | Microsemi-IPG | Integrated Circuits (ICs) | IC VOLTAGE REG POS 12V TO-39 |
| MC7812ECTBU | Digi-Key | Fairchild Semiconductor | Integrated Circuits (ICs) | IC REGULATOR 12V 1.0A 4% TO-220 |
| MC7812ABD2TG | Digi-Key | ON Semiconductor | Integrated Circuits (ICs) | IC REG POS VOLT 1A 12V D2PAK |
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Semiconductor: 7812 - VOLTAGE REGULATOR +12V... - US$ Site English in ?: Semiconductor: 7812 - VOLTAGE REGULATOR +12V... UK Site in £: Semiconductor: 7812 - VOLTAGE REGULATOR +12V... |
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Circuit Design - 7812 Get Hot / Vin Voltage Drop connected in this way, the input voltage supply from non-regulated adaptor is 18V 1000mA. 18 Vin o-------------7812 -------- | | | | | R= 10ohm 5 |
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LM340/LM78XX Series 3-Terminal Positive Regulators (Note 5) Operating Conditions (Note 1) DC Input Voltage 35V Temperature Range (T ) (Note 2) Internal Power Dissipation (Note 2) Internally Limited A See Digi-Key Corporation Profile & Catalog |
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Diverse Technologies Pty Ltd - Computer and Electronics Online... 7812 +12V Voltage Regulator - 1A T0-220 |
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Balanced microphone preamp So feel free to experiment, look towards op-amps with low noise and big allowed differential input voltage. |
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Various Schematics and Diagrams Simple High Voltage Generator Adjustable High Voltage Power Supply High Voltage Power Supplies - Home-built and commercial units. |
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Regulated DC power supply The base of this design is a simple 12V regulator (7812). The output voltage can be brought to desired value (here 13.8V) by two external resistors |
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LM79XX 20090706.fm TO-220 Vin 1 1. GND 2. Input 3. Output Internal Block Digram GND R1 VOLTAGE REFERENCE R2 Ou Ou t tput + Q1 - Q2 PROTECTION CIRCUITRY I1 I2 Rsc In See Digi-Key Corporation Profile & Catalog |
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PFCM Design Guide PFCM Design Guide with Analog PFC IC HP SPM... 3 Over Voltage Protection......................................................................................................................... 4 See Fairchild Semiconductor Corporation Information |
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Re: how to convert 240AC to 12V DC/1Amp modified for 12V output by using 7812 regulator instead of 7805 (and have all capacitors with at least 25V voltage rating). : This is the simplest |