Product Images are shown for illustrative purposes only and may differ from actual product.
UC3854 High Power Factor Preregulator
- Stock: 6
- SKU: 819 | DAA470
-
Rs. 214.76 (inc GST)
Rs.182.00 + GSTQty :
| Also Available: PMS5003 PM2.5 AIR QUALITY SENSOR BY PLANTOWER in Stock |
GST Invoice: Available for all purchases; eligible for input tax credit.
Delivery: 2–8 days across India. No MOQ required.
Bulk Orders: Need a larger quantity or item not in stock? Email: dnatechindia [at] gmail.com
Import Service: We import a wide range of electronic components on request.
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
Frequently Asked Questions
Do you provide a GST bills?
What is your return / replacement policy?
What if tracking shows “delivered” but I didn’t receive it?
What payment methods do you accept?
Do you support Purchase Orders (PO) for companies/colleges?
What if I received fewer / more quantity than ordered?
NEW Products
Product Page : New Products
INA125U Amplifier With Precision Voltage SOIC-16 IC
INA125U Amplifier with Precision Voltage IC INA125U Amplifier with precision voltage reference and ..
Rs.1,416.00 (inc GST)
Rs.1,200.00 + GST
SKU: 7625 | DAH443
Stock: 5
4MHZ CRYSTAL
Crystal 4MHz Oscillator 4MHz Crystal Oscillator for clock pulse generation with ±50ppm stability and..
Rs.9.44 (inc GST)
Rs.8.00 + GST
SKU: 94 | DAA631
Stock: 26
Hongfa HF32F/024-ZS3 Relay
Hongfa HF32F/024-ZS3 Miniature Power RelayHongfa HF32F/024-ZS3 Relay, SPDT configuration, 24 VDC vol..
Rs.59.24 (inc GST)
Rs.50.20 + GST
SKU: 9985 | DAI777
Stock: 100
AZ3166 WiFi IOT Developer Kit
AZ3166 WiFi IOT Developer Kit AZ3166 WiFi IOT Developer Kit with Wi-Fi connectivity, OLED display, a..
Rs.5,841.00 (inc GST)
Rs.4,950.00 + GST
SKU: 9015 | DAI019
Stock: 2
Have You Seen
Product Page : Have You Seen
HLK-20M24 AC to DC 20 Watts 24 Volts Module
HLK-20M24 24V 20W Power Supply Module HLK-20M24 Power Module offers 24V output, 20W power, and inpu..
Rs.447.81 (inc GST)
Rs.379.50 + GST
SKU: 2595 | DAE085
Stock: 7
Espressif ESP32-WROOM-32D 16M 128Mbit Flash WiFi Bluetooth Module
Espressif ESP32-WROOM-32D WiFi Bluetooth Module ESP32-WROOM-32D Module with 16MB Flash, 128Mbit PSR..
Rs.477.90 (inc GST)
Rs.405.00 + GST
SKU: 9154 | DAF302
Stock: 24
Sensirion SCD30 CO2 Sensor 400-10000 ppm, Temp & RH, I2C Output
Sensirion SCD30 CO2 Sensor 400-10000 ppm, I2C Output Sensirion SCD30 CO2 Sensor, 400-10000 ppm, Te..
Rs.1,961.75 (inc GST)
Rs.1,662.50 + GST
SKU: 9735 | DAI578
Stock: 10
PEC11L 4125F S0020 Bourns Encoder Rotary Encoder
Bourns PEC11L 4125F S0020 Rotary Encoder PEC11L 4125F S0020 Rotary Encoder features 20 pulses per ro..
Rs.306.80 (inc GST)
Rs.260.00 + GST
SKU: 7927 | DAH298
Stock: 1
Related Products
YF-S402 G1/4" PVC Water Flow Sensor
YF-S402 G1/4" PVC Water Flow SensorThis water flow sensor is basically a small turbine whose output ..
Rs.327.45 (inc GST)
Rs.277.50 + GST
SKU: 1632 | DAB255
Stock: 5
MT3608 DC to DC Step up Boost IC
MT3608 DC to DC Boost IC MT3608 Boost IC; Converts 2V to 24V input to 5V to 28V output; 97% efficie..
Rs.27.14 (inc GST)
Rs.23.00 + GST
SKU: 2427 | DAC257
Stock: 500
HB9500 4PIN SCREWABLE CONNECTOR WITH COVER
HB9500 4PIN Screwable Connector with Cover HB9500 4PIN connector is designed for secure wiring with..
Rs.33.63 (inc GST)
Rs.28.50 + GST
SKU: 5044 | DAG813
Stock: 10
LMV358 OPERATIONAL AMPLIFIER (MSOP8) IC
LMV358 Low-Voltage Operational Amplifier ICLMV358 Dual-channel op-amp with low power, rail-to-rail o..
Rs.33.04 (inc GST)
Rs.28.00 + GST
SKU: 7865 | DAG030
Stock: 10
SPACER TO STUD 3*3 HEX 20+5 = 25MM
Spacer to Stud 3*3 Hex 20+5 = 25MM Spacer to Stud Hex 20+5 = 25MM provides precise spacing with a du..
Rs.10.62 (inc GST)
Rs.9.00 + GST
SKU: 8597 | DAH869
Stock: 0
PL2303HX USB to RS485 Adapter Converter Module With Xp/Linux/Win7
PL2303HX USB to RS485 Adapter Converter Module With Xp/Linux/Win7PL2303HX USB to RS485 Converter + V..
Rs.105.40 (inc GST)
Rs.89.32 + GST