UC3854 High Power Factor Preregulator
- Stock: Out Of Stock NotInStock
- SKU: 0819 | DAA470
-
Rs.
182.90 (inc GST)
Rs.155.00 + GSTQty :
GST Invoice on all Purchase. So you will be eligible to take input tax credit. |
IF component not in Stock or require more quantity or want to buy in bulk e-mail us your requirements on: dnatechindia "at" gmail.com. |
Shipping : Due to Covid-19 situation delivery will be affected. Delivery period due to covid-19 issue will be from 4 - 12 days depending upon your location. |
UC3854 High Power Factor Preregulator
The UC3854 provides active power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizing line-current distortion. To do this, the UC3854 contains a voltage amplifier, an analog multiplier/divider, a current amplifier, and a fixed-frequency PWM. In addition, the UC3854 contains a power MOSFET compatible gate driver, 7.5V reference, line anticipator, load-enable comparator, low-supply detector, and over-current comparator.
The UC3854 uses average current-mode control to accomplish fixed frequency current control with stability and low distortion. Unlike peak current-mode, average current control accurately maintains sinusoidal line current without slope compensation and with minimal response to noise transients. The UC3854’s high reference voltage and high oscillator amplitude minimize noise sensitivity while fast PWM elements permit chopping frequencies above 200kHz. The UC3854 can be used in single and three phase systems with line voltages that vary from 75 to 275 volts and line frequencies across the 50Hz to 400Hz range. To reduce the burden on the circuitry that supplies power to this device, the UC3854 features low starting supply current. These devices are available packaged in 16-pin plastic and ceramic dual in-line packages, and a variety of surface-mount packages.
Features of UC3854
Control Boost PWM to 0.99 Power Factor
Limit Line Current Distortion To <5%
World-Wide Operation Without Switches
Feed-Forward Line Regulation
Average Current-Mode Control
Low Noise Sensitivity
Low Start-Up Supply Current
Fixed-Frequency PWM Drive
Low-Offset Analog Multiplier/Divider
1A Totem-Pole Gate Driver
Precision Voltage Reference
NEW Products
Product Page : New Products
3 Pin Double Decker Terminal Block
3 Pin Double Decker Terminal Block3 PIN Screwable DD Terminal block with 5.08 mm PitchThis is a 3 Pi..
Rs.35.40 (inc GST)
Rs.30.00 + GST
SKU: 2685 | DAE207
Stock: 10
2 Pin Double Decker Terminal Block
2 Pin Double Decker Terminal Block 2 PIN Screwable DD Terminal block with 5.08 mm Pitch, 4 Way PC..
Rs.23.60 (inc GST)
Rs.20.00 + GST
SKU: 2684 | DAE206
Stock: 10
DM860H Digital Microstepping Stepper Motor Driver
DM860H Stepper Motor DriverDMA860H | MA860H 7.2 Ampere MICROSTEPPING STEPPER DRIVERThe D860H | MA860..
Rs.3,013.72 (inc GST)
Rs.2,554.00 + GST
SKU: 2655 | DAE102
Stock: 1
9 Volt 1 Ampere AC to DC Adapter
9 Volt 1 Ampere AC to DC AdapterThis is a high quality SMPS based 9 Volt DC Adapter. It can be use..
Rs.140.00 (inc GST)
Rs.118.64 + GST
SKU: 0840 | DAB480
Stock: 1
Have You Seen
Product Page : Have You Seen
AD711 BiFET Opamp
AD711 BiFET OpampAD711 Low Cost BiFET OPAMPThe AD711 is a high speed, precision monolithic oper..
Rs.200.60 (inc GST)
Rs.170.00 + GST
SKU: 0456 | DAA013
Stock: 1
TC426 High-Speed Power MOSFET Drivers
TC426 High-Speed Power MOSFET DriversThe TC426/TC427/TC428 are dual CMOS high-speed drivers. A TTL/C..
Rs.130.98 (inc GST)
Rs.111.00 + GST
SKU: 0739 | DAA029
Stock: 0
MCP3204 ADC
MCP3204 ADCMCP3204: 12bit four channel ADC with SPI interfaceThe Microchip Technology Inc. MCP3204 d..
Rs.206.50 (inc GST)
Rs.175.00 + GST
SKU: 0156 | DAA035
Stock: 0
Related Products
UC3710 High Current FET Driver
UC3710 High Current FET DriverThe UC3710 family of FET drivers is made with a high-speed Schottky pr..
Rs.354.00 (inc GST)
Rs.300.00 + GST