We manufacture the best and unique devices some for controlling DC and AC power and some for signal processing to enhance SNR. Among large varieties of SPST, SPDT, DPST relays you’ll find many devices to meet your specifications. From D1L-series (a low cost, medium speed SSRs) to D9F-series (super-high power) devices that ready for switching various powers and drive different kind of loads: AC and DC/AC power, video, flashlamp for SS-laser, DC and stepper motors, solenoids, thermocoolers, audio signal multiplexing, quartz, lamps, coils, plasma, etc.

There are several ways to solve the problem of contact bounce (that is, to “de-bounce” the input signal). Often the easiest way is to get a piece of equipment that is designed to accept “bouncy” input and EDR’s made Solid-State Relays are the solution. To get more info please contact us at info@vsholding.com

Solid State Relays and Devices

We manufacture the best and unique modules some for controlling DC and AC power and some for signal processing to enhance SNR. Among large varieties of SPST, SPDT, DPST relays with MOSFET and IGBT on their output(s) you’ll find a relay to meet your specifications. From D1L-series (a low cost, medium speed SSRs) to D3F-series (moderate costs and high-speed SSRs) devices are ready to switch various signals and drive different kind of loads: AC and DC power, video, flashlamp for SS-laser, DC and stepper motors, solenoids, audio signal multiplexing, quartz, lamps, coils, plasma, etc.
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50/60Hz Notch Filter

The EDR 82534 is a low cost, multi-notch (comb) reject filter for low frequency signal applications. A Power interference or band stop filter is an important and needed sub-component to design and build medical recording systems where minute bioelectric signals, on the order of mill volts to microvolts are measured.
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New Product Offerings


DIN Rail mounted Solid-State Relays/Switches and Drivers
Having a DIN Rail clamp makes things easier. Devices can easily be mounted or removed at any location on the DIN Rail thus installation or replacement is simple. For your unique application that required a different voltage, current or speed, do not hesitate to send us an email to: info@vsholding.com
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Ultra-Fast I-V Biases Generators
are ultra-fast, bipolar pulse generating devices deliver bias voltages for controlling conductivity of high-voltage PIN diode during Magnetic Resonance Imaging and Spectroscopy. For your unique application that required a different voltage, current or speed, do not hesitate to send us an email to: info@vsholding.com
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Super High-Power Switching Apparatus (SHPSA) with Virtual Battery. The SHPSA-200A400/100V05F has a Power Rating of 80kW (average), 600kW pulse. Switches installed for handling 200VDC (140VAC) & 400Arms . Built-in adjustable pulse generator, once triggered, would deliver a 10ms pulse. For your unique application that required a different voltage, current or speed, do not hesitate to send us an email to: info@vsholding.com for any additional information, delivery schedule and prices.
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UPEL-2500 Bench Top Electronic Load Simulation System. It is designed for DC/AC power sources, power electronic devices and component testing. The high power rating, AC/DC capability, manual and remote controls make these loads the ideal tool for testing the high power UUT such as SMR, UPS, telecommunications equipment manufacturers, power suppliers, drivers, battery and other power sources that operate from DC to 100 KHz. For your unique application that required a different voltage, current or speed, do not hesitate to send us an email to: info@vsholding.com for any additional information, delivery schedule and prices.
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Press Release


SHPSA-1000A650, mega power Solid State Switching Apparatus
Louisville, Kentucky, USA - Electronic Design & Research, Inc., a wholly owned subsidiary of VS Holding LLC, announced the delivery a SHPSA-1000A650, mega power Solid State Switching Apparatus configured as a SPDT&N (or SPCO) switch for a high-current ATE tests to MET Laboratories, Inc. Santa Clara, CA, USA. It's rated at 1000Arms & 650V and delivers 300kW (average) and 1.5MW pulses. Switches installed for handling 650VDC (380VAC) & 1000A. Built-in adjustable pulse generator, once triggered, would deliver 10ms pulse. An external pulse generator can be use for generating all kind of waveforms. Inquiries are welcome and for your unique application that required a different voltage, current or speed, do not hesitate to send us an email to: info@vsholding.com

DPDT-D relays
EDR/VSHOLDING extends a line of DIN rail mountable devices by introducing the DPDT (2C Form 2B) family of SSRs mimicking 100% comparable electromechanical relays.

Wide Hysteresis Window Comparator
DT1L's family - EDR/VSHOLDING announces the xTxL family of SSRs with high precision, wide hysteresis window comparator and varied contact forms rated at various voltages/currents.

Isolated Brushed DC Motor Drivers
iMDxx family - Isolated Brushed DC Motor / Piezo driver with Power Ratings up to 21KW - EDR/VSHOLDING introduces a new family of isolated Brushed DC Motor drivers based on H-bridge configuration can be used for driving Brushed DC motors, power converging or driving a Piezo transducer with doubling power.

DIN Rail mounted Solid-State Relays/Switches and Drivers
EDR/VSHOLDING announces DIN Rail mounted SPST, SPDT, DPST, SPDT&N Solid-State Relays/Switches and half & full-bridge drivers. A wide range of devices are available off the shelf and are rated at a variety of output voltages, output currents, input control voltages and power requirements.

900V High-Speed H-driver
EDR/VSHOLDING introduces 900 VDC / 9.5 kW 10 ns rise time Full-Bridge ISO-drivers for applications where delivering kilowatts of high-frequency power is a must, such as a voltage booster to piezoelectric transducers and DC/DC converters, bidirectional PWM control, etc.

Ultra-Fast I-V Biases Generator
EDR, Inc/VSHolding is proud to announce the third generation Ultra-Fast I-V Biases Generators (UFBG) designed for real -time MRI, Magnetic Resonance Spectroscopy (MRS) and Ultrashort TE (UTE) Imaging.

High Power Panel Mount Relay. up to 1500 VDC & 150 Amp. Low control power of only 1.4mW at 2.8 VDC.

EDR/VSholding Announces the first shipment of W1F30D14/5 highspeed DPST/SPDT relays/switches.

U.S. Patent Office - Notice of Publication of Application for the
"High Efficiency All-Electric Vehicle Propulsion System"

Micro-Power Solid-State Relays Output to 3.5kW of AC or DC voltages with a control of only 0.6mW.

Vladimir A. Shvartsman's book "How to Paint Chickens..." now on BookDaily.com

VSHolding relays used in KTH Racing's electric powered race car.

Reader Views - Interview

Pacific Book Review - Interview

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AS9003 Internal Audit Report 2012