Transient Voltage
Todays deals on Transient Voltage?
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Square D Surgelogic TVS2EMA48A Transient Voltage Surge $3,600.00 |
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EATON Cutler Hammer CPS100208YAZ Transient Voltage Surge Suppressor EMI Fi *New* $2,500.00 |
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SQUARE D (TVS2EBA12A) TRANSIENT VOLTAGE SURGE SUPPRESSOR (NIB) $2,200.00 |
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SQUARE D TVS4EMA24AIC TRANSIENT VOLTAGE SUPPRESSOR NEW $1,500.00 |
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TRANSIENT VOLTAGE SURGE SURPPRESSOR TPME120S06AS *NEW* $1,500.00 |
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Square D CVMT Current/Voltage Module Transient $1,050.00 |
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Northern Technologies DMK-BI-20SA Transient Voltage Surge Suppressor $1,029.99 |
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Innovative Technology P480NN & Transient Voltage Surge $999.00 |
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TRANSTECTOR TRANSIENT VOLTAGE SURGE SUPPRESSOR ACP100BW $999.00 |
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LEVITON MULTI PHASE TRANSIENT VOLTAGE SURGE SUPPRESSOR NEW IN THE BOX $899.00 |
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Psytronics P4801 480V Transient Voltage Protection Sys $875.00 |
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GE TPME480D06AS Transient Voltage Surge Suppressor (TVSS) $850.00 |
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ACT Communications 455-277-202 277V 3-Phase Transient Voltage Surge Suppressor $849.99 |
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ATLANTIC SCIENTIFIC 12100 TRANSIENT VOLTAGE SURGE SUPPRESSOR ***NIB*** $799.00 |
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ACT TRANSIENT VOLTAGE SURGE PROTECTOR P/N: 472-120-3DSG $699.00 |
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Square D MA8IMA16 Surgelogic Transient Voltage Surge Protector Suppressor 347V $749.95 |
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CUTLER HAMMER PTX080 TRANSIENT VOLTAGE SURGE SUPPRESSOR 3 PHASE FPTX080-NN400 $650.00 |
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Square D MA8IMA12 Surgelogic Transient Voltage Surge Protector Suppressor 347V $649.95 |
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Psytronics Transient Voltage Surge Suppressor # P4803D $600.00 |
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LEVITON NIB 42120-001 / 42120-1 TRANSIENT VOLTAGE SURGE SUPPRESSOR (ES17) $600.00 |
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PSYTRONICS TRANSIENT VOLTAGE SURGE SUPPRESSOR P1301 $550.00 |
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Square D MA3IMA12 Surgelogic Transient Voltage Surge Protector Suppressor 240V $599.95 |
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LEA International DS2S-277/480-3Y-S Transient Voltage Surge Suppressor $499.00 |
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NIB Psytronics Transient Voltage Surge Suppressor 3 Phase P4803D _ P48O3D $550.00 |
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EFI, MXPB 480EFI-STD TRANSIENT VOLTAGE SURGE SUPPRESSOR $525.00 |
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PSYTRONICS TRANSIENT VOLTAGE SURGE SUPPRESSOR, 480V, 3 PHASE, P4803D $525.00 |
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LSPE-3Y Transient Voltage Surge Suppressor 3-PY 208V30A $535.00 |
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Siemens Multi phase transient voltage Surge suppressor $495.00 |
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INOVATIVE TECHNOLOGY TRANSIENT VOLTAGE SUPPRESSOR XT40-3Y201 STYLE 350-0006 $495.00 |
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INNOVATIVE TECHNOLOGY FHS-P-SP-120-30A-RJDC TRANSIENT VOLTAGE SUPPRESSOR $499.99 |
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GE THE120Y200PP Transient voltage surge suppressor Free S&H $499.99 |
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Cutler Hammer EATON CPS160240SAA TRANSIENT VOLTAGE 30A $499.00 |
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PSYTRONICS P4803D TRANSIENT VOLTAGE SURGE SUPPRESSOR $475.00 |
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1208VF3-6T SINE Control/ Transient Voltage Surge Suppressor-Industrial Apps $475.00 |
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Psytronics Transient Voltage Surge Suppressor P4803D $450.00 |
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Innovative Technology Inc. XT40-3Y101 XT403Y101 Transient Voltage $399.00 |
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Psytronics Transient Voltage Surge Suppressor P4803D $445.00 |
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EFI TITAN TRANSIENT VOLTAGE SURGE SUPPRESSOR OSW277/480 $425.00 |
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Psytronics Transient Voltage Surge Suppressor P4803D $400.00 |
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SIEMENS TRANSIENT VOLTAGE SURGE SUPRESSOR TPS-E12/160/S $380.00 |
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EFI MBP480D TRANSIENT VOLTAGE SURGE SUPPRESSOR NEW $350.00 |
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NEW Siemens TPS Transient Voltage SPD Surge Suppressor 480V 10kA TPS3F063100H $299.99 |
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Transient Voltage Surge Suppressor Current Technology $350.00 |
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Transtector Transient Voltage Suppressor $350.00 |
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EFI MBP480EFI-D3/MA5 TRANSIENT VOLTAGE SUPPRESSION ***NIB*** $329.00 |
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ITD Transient Voltage Surge Suppressor TVSS 120V 208V 3 Ph ITD80A $299.95 |
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ITD TVSS Transient Voltage Surge Suppressor 480V 3 Ph $249.95 |
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EFI MA-4 277-352 MA4 TRANSIENT VOLTAGE SUPPRESSION ***NIB*** $249.00 |
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Model 3W REDI/VOLT II SYSTEM IV Transient Voltage Surge Suppressor New in Box $229.95 |
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Model SC REDI/VOLT II SYSTEM IV Transient Voltage Surge Suppressor New in Box $229.95 |
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EFI MA-4 277-352 MA4 TRANSIENT VOLTAGE SUPPRESSION ***NNB*** $219.00 |
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GE Transient Voltage Surge Suppressor 240 VAC Model TLE240D050WM $199.99 |
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PSYTRONICS P1301 TRANSIENT VOLTAGE SURGE SUPPRESSOR NIB $199.95 |
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GE TME120S065WM Transient Voltage Surge Surpressor $199.99 |
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MA5 EFI TRANSIENT VOLTAGE SUPPRESSION SYSTEM MULTI PHZ $200.00 |
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600PC 1.5KE6.8CA DO-201 1500W TRANSIENT VOLTAGE SUPPRES $181.99 |
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Joslyn Transient Voltage Surge Protectors 72405-120-M $178.49 |
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Levitron Transient Voltage Surge Suppressor 42277-DY3_42277DY3 $175.00 |
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1000x 1.5KE51CA DO-201AD 1.5KE51 1500W TRANSIENT VOLTAGE Diode NEW/Free Reg Mail $169.99 |
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HUBBELL HBL1T65 TRANSIENT VOLTAGE SURGE SUPPRESSOR *NEW $124.99 |
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Leviton 32277-DY3 Transient Voltage Surge Suppressor $150.00 |
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Reel of 2500 NXP Semiconductors pesd5vol6us Transient Voltage Suppressor $149.99 |
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LEA DYNATECH PT-130-1 TRANSIENT VOLTAGE SURGE PROTECTOR NEW $135.00 |
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Sine Wave Tracking Transient Voltage Surge Suppressor $145.00 |
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1000 PCS 1.5KE51CA DO-201AD 1.5KE51 1500W TRANSIENT VOLTAGE NEW/Free Reg Mail $149.99 |
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Leviton 52120-M3 Transient Voltage Surge Suppresor $125.00 |
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#344 Transient Voltage Surge Suppressor “Zone Sentinel” AC Power Line 60 HZ $149.00 |
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Psytronics P1301 Surge Suppressor Transient Voltage Single Phase 120 V (5461) $130.00 |
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THE IT PROTECTOR TRANSIENT VOLTAGE SURGE SUPPRESSOR $124.99 |
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THE IT PROTECTOR P-3Y 277/480+ TRANSIENT VOLTAGE SURGE SUPPRESSOR ***NIB*** $119.00 |
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Psytronics Transient Voltage Surge Suppressor P1301 $125.00 |
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2500 On Semi 1SMB6.0AT3 6V Transient Voltage Suppressor $112.99 |
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Psytronics #P1301 Transient Voltage Surge Supp U WC1/1 $100.00 |
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Solitron Devices Transient Voltage Indicator Meter V200 Greibach Instruments $99.01 |
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dec Transient Voltage Surge Suppressor AC Power LIne Mo $109.99 |
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5KP180CA Transient Voltage Suppressor (Lot of 50) $104.00 |
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equaliser/ transient voltage surge suppressor/EQX80–3Y101brand new $100.00 |
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USED Psytronics P1301 Transient Voltage Surge Supressor $100.00 |
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EFI Titan 65AR120-240LTB Transient Voltage Surge Suppressor $99.99 |
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SIEMENS TRANSIENT VOLTAGE SURGE SUPPRESSOR TPS-E12/240 $49.00 |
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Eaton Cutler Hammer AEGIS Transient Voltage Surge Suppressor AGSHWCH120N05XS $99.00 |
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IT Protector Transient Voltage Surge Suppressor P-240NN $79.99 |
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Current Technology MERF 120/240-3GHD Transient Voltage Surge Suppressor $94.99 |
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GE TME120S100ASNF Transient Voltage Surge Surpressor $79.99 |
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CUTLER HAMMER BR SURGE BREAKER NEW TRANSIENT VOLTAGE SURGE SUPPRESOR PROTECTION $72.00 |
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LEVITON 5500-190 RACK MOUNT TRANSIENT VOLTAGE SURGE SUPPRESSOR 15A 125VAC NNB $80.00 |
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PSYTRONICS P4803D TRANSIENT VOLTAGE SURGE SUPPRESSOR 100% POSITIVE FB $79.99 |
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Diode-GI5KP22 Transient voltage supression 24 on a PCB $65.00 |
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LEVITON TRANSIENT VOLTAGE SURGE SUPPRESSOR & NOISE FILTER W $65.00 |
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5KP180CA Transient Voltage Suppressor (Lot of 25) $60.00 |
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ESP / PANASONIC / IKON OFFICE SOLUTIONS D114Z6T TRANSIENT VOLTAGE SURGE SUPRESSO $65.00 |
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LEVITON 51020-WM, TRANSIENT VOLTAGE SURGE SUPPRESSOR & NOISE FILTER $50.00 |
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39 PC’S P/N BZW5068 TVS Diodes Transient Voltage Suppressors 5000W 68V Unidirect $59.99 |
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Psytronics Transient Voltage Surge Suppressor P4803D_P48O3D $59.00 |
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Joslyn 1261-49-R-TT Transient Voltage Surge Suppressor $50.00 |
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HEI 175 VAC Transient Voltage Surge Suppressor,Lightning Arrestor HE500S ~STSI $58.48 |
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NEW PSYTRONICS TRANSIENT VOLTAGE SURGE SUPPRESSOR MODEL P1301 U.L SVR 500V 1 PH $45.00 |
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704-15K36 Transient Voltage Suppressor TVS 704-15-K36 $49.95 |
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Psytronics P2403D-Transient Voltage Suppressor $40.00 |
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43884-0010 TVS TRANSIENT VOLTAGE SUPRESSOR 1 PAIR 30VDC $49.99 |
Transient Voltage Questions
Types of Switched Capacitor Voltage Converters
Types of Switched Capacitor Voltage Converters
In the above circuit capacitor C1 is charged to the input voltage during first half of switching cycle. In the second half of switching cycle its voltage is inverted and applied to capacitor C2 and load. The output voltage is negative of the input voltage. The Duty cycle – defined as ratio of charging time of capacitor C1 to the entire switching cycle time – is usually 50% because that generally yields the optimal charge transfer efficiency.
During the time period of transient conditions start-up and steady state condition the capacitor C1 has to supply only a small amount of charge to the output capacitor on each switching cycle. The amount of charge transferred depends upon the load current and the switching frequency. Capacitor C1 is also known as charge pump capacitor.
During the time the charge pump capacitor is being charged by the input voltage, the output capacitor C2 must supply the load current. The load current flowing out of C2 causes a droop in the output voltage which corresponds to a component of output voltage ripple. Higher switching frequency allow smaller capacitors for the same amount of droop. Thus the switching frequency impacts the size of the external capacitor required. Higher switching frequency allows the use of smaller capacitor. The Switching frequencies are generally limited to few hundred Khz.
Switched capacitor inverters are low cost, compact and efficiency achieved are greater than 90%. Typical switched capacitor inverters have maximum output current of 150mA maximum.
The Voltage inverters are used in applications where relatively low current negative voltage is required in addition to the primary positive voltage. This may occur in single power supply system where only a few high performance parts require the negative voltage.
Voltage Doubler
Voltage Doubler works similarly to the Inverter, however, the pump capacitor is placed in series with the input voltage during its discharge cycle, thereby, accomplishing the voltage doubling function. In voltage doubler, average input current is approximately twice the average output current.
Voltage doublers are used in low current applications where a voltage greater than the primary supply voltage is required.
Regulated Output Switched Capacitor Voltage Converters
Adding regulation to the switched capacitor voltage converters increases its usefulness in many applications. The most straightforward is to follow the switched capacitor converter with a low dropout linear regulator (LDO). The LDO provides the regulated output and also reduces the ripple of the switched capacitor converter. This approach however, adds the complexity and reduces the available output voltage by the dropout voltage of the LDO.
Another approach to regulation is to vary the duty cycle of the switch control signal with the output of an error amplifier which compares the output voltage with a reference. However, this approach is highly non linear and requires long time constants in order to maintain good regulation control.
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