UC38 Search Results

UC38xx

Abstract: unitrode U-128 BA1610 UC3825 application note UC28xx
Contextual Info: IN TEG R A T ED CIR C UITS U C 1823A ,B /1825A ,B UNITRODE U C 2823A , B /2825A,B U C 3823A ,B /3825A ,B High Speed PWM Controller FEATURES DESC RIPTIO N “Bold Type” Denotes improved or new features • Improved versions of the UC3823/UC3825 PWMs The UC3823A & B and the UC3825A & B family of PWM control ICs are Improved versions of the standard

D945 TRANSISTOR

Abstract: d945
Contextual Info: UC1842A/3 A/4A/5 A UC2842A/3A/4A/5A UC3842A/3A/4A/5A U IM IT R O D E Current Mode PWM Controller DESCRIPTION Low Start Up Current <0.5mA Trimmed Oscillator Discharge Current Automatic Feed Forward Compensation Pulse-by-Pulse Current Limiting Enhanced Load Response Characteristics

ic 6283 circuit diagram

Abstract: amplifier ic 6283 amplifier circuit using 6283 d 6283 ic
Contextual Info: IN T E G R A T E D C IR C U I T S UC1853 UC2853 UC3853 U N IT R Q D E ADVANCED INFORMATION High Power Factor Preregulator Complete 8-pin Power Factor Solution Reduced External Components RMS Line Voltage Compensation Precision Multiplier/Squarer/Divider Internal 75kHz

UC2856

Contextual Info: UC1856 UC2856 UC3856 y UNITRODE Improved Current Mode PWM Controller FEATURES Pin-for-Pin Compatible With the UC3846 DESCRIPTION Improved Current Sense Amplifier With Reduced Noise Sensitivity The UC3856 is a high performance version of the popular UC3846

ksy 11

Contextual Info: y UC1875/6/7/8 UC2875/6/7/8 UC3875/6/7/8 UNITRODE Phase Shift Resonant Controller FEATURES DESCRIPTION • Zero to 100% Duty Cycle Control • Programmable Output Turn-On Delay The UC1875 family of integrated circuits implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect

uc3825 design

Abstract: power supply design uc3825
Contextual Info: IN T E G R A T E D C IR C U IT S UC1825 UC2825 UC3825 U N IT R O D E High Speed PWM Controller DESCRIPTION Compatible with Voltage or Current Mode Topologies Practical Operation Switching Frequencies to 1MHz 50ns Propagation Delay to Output High Current Dual Totem Pole Outputs

500 watt mosfet power amplifier circuit diagram

Abstract: transistor v2w power supply IRF830 APPLICATION 300 watt mosfet amplifier
Contextual Info: y IN T E G R A T E D C I R C U IT S UC1852 UC2852 UC3852 UNITRQDE High Power Factor Preregulator FEATURES • Low-Cost Power Factor Correction • Power Factor Greater Than 0.99 • Few External Parts Required • Controlled On-Time Boost PWM • Zero-Current Switching

Contextual Info: IN T E G R A T E D C I R C U IT S UC1871 UC2871 UC3871 U N IT R O D E Resonant Fluorescent Lamp Driver 1nA ICC when Disabled PWM Control fo r LCD Supply Zero Voltage Switched ZVS on Push-Pull Drivers Open Lamp Detect Circuitry 4.5V to 20V Operation Non-saturating Transform er

Contextual Info: UC1849 UC2849 UC3849 UNITRODE Secondary Side Average Current Mode Controller FEATURES DESCRIPTION • Practical Secondary Side Control of Isolated Power Supplies • 1MHz Operation • Differential AC Switching Current Sensing • Accurate Programmable Maximum Duty Cycle

Sink15

Contextual Info: y applicationlB K INFO1 UNITRODE Il available ] UC1849 UC2849 UC3849 Secondary Side Average Current Mode Controller FEATURES DESCRIPTION • Practical Secondary Side Control of Isolated Power Supplies The UC1849 family of average current mode controllers accurately accom­

Contextual Info: IN T E G R A T E D C IR C U IT S UC1823 UC2823 UC3823 U N IT R Q D E High Speed PWM Controller FEATURES Com patible w ith Voltage or Current-M ode Topologies Practical O peration @ Switching Frequencies to 1.0MHz 50ns Propagation Delay to Output High C urrent Totem Pole O utput 1,5A peak

UNITRODE DN-39

Abstract: UC3854 mathcad mathcad pfc DN-39 UC3854
Contextual Info: DN-66 UNITROOE Design Note Unitrode - UC3854A/B and UC3855A/B Provide Power Limiting With Sinusoidal Input Current for PFC Front Ends by Laszlo Balogh This design note focuses on one of the major im­ provements introduced to the industry standard UC3854 high power factor boost controller. The

C1846

Abstract: C1847 UC3847 application UC3847 uc2846 application circuit UC2846 846U
Contextual Info: UC1846, UC1847, UC2846 UC2847, UC3846, UC3847 CURRENT-MODE PWM CONTROLLERS D3045, APRIL 198 8-R EV tS ED OCTOBER 1908 • Autom atic Feed-Forw ard C o m p en sa tion UC1846. U C1847 . . J PACKAG E U C 2 8 4 6 . U C 2 8 4 7 , U C 38 46 . U C 3 8 4 7 . . . N P A C K A G E

high voltage linear regulator negative

Abstract: mag amp
Contextual Info: Power Supply Support Functions High Efficiency Linear Regulators UC1834/ UC2834/ UC3834 High Efficiency, Linear Regulator • Equally usable for either positive or negative regulators • 5A load with 0.5V Vin-Vout using external transistor • Internal precision positive and negative references

UC3854 Design Note

Abstract: UC3854 test
Contextual Info: IN T E G R A T E D C IR C U IT S UC1854 UC2854 UC3854 UNITRODE High Power Factor Preregulator FEATURES DESCRIPTION • Control Boost PWM to 0.99 Power Factor • Limit Line Current Distortion To <5% • World-Wide Operation Without Switches • Feed-Forward Line Regulation

Contextual Info: y UNITRODE UC185-1 , - 2 , - 3 , - A D J UC285-1 ,-2,-3,-ADJ UC385-1 ,-2,-3,-ADJ PRELIMINARY Fast LDO Linear Regulator FEATURES DESCRIPTION • Fast Transient Response The UC385 is a low dropout linear regulator providing a quick response to fast load changes. Combined with its precision on-board reference, the

UC3861 application note

Contextual Info: 1 1 |application INFO available | UNITRODE UC1861-1868 UC2861-2868 UC3861-3868 Resonant-Mode Power Supply Controllers FEATURES DESCRIPTION • Controls Zero Current Switched ZCS or Zero Voltage Switched (ZVS) Quasi-Resonant Converters The UC1861-1868 family of ICs is optimized for the control of Zero Cur­

RL3792

Abstract: 500 watt mosfet power amplifier circuit diagram
Contextual Info: y UC1852 UC2852 UC3852 U N IT R O D E High Power-Factor Preregulator FEATURES DESCRIPTION • Low-Cost Power Factor Correction • Power Factor Greater Than 0.99 • Few External Parts Required The UC1852 provides a low-cost solution to active power-factor correction PFC

Contextual Info: H IN T E G R A T E D ! C IR C U IT 8 y UC1875/6/7/8 UC2875/6/7/8 UC3875/6/7/8 U N IT R O D E Phase Shift Resonant Controller FEATURES DESCRIPTION • Zero to 100% Duty Cycle Control The UC1875 family of integrated circuits implements control of a bridge power stage by phase-shifting the

unitrode Applications Note U-96

Abstract: UC3642 UNITRODE applications handbook uc3842 -96 U-101 unitrode unitrode Application Note U-96 forward converter uc3844 500w 500W boost converter uc3843 UC3843 application note buck UC3843 in isolated flyback converter UC3843 application note soft start
Contextual Info: APPLICATION NOTE U-100A THE UC3842/3/4/5 SERIES OF CURRENT-MODE PWM IC’S DESCRIPTION FEATURES The UC1842/3/4/5 family of control ICs provides the nec­ essary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal

Contextual Info: DN-40 U N IT R O D E Design Note THE EFFECTS OF OSCILLATOR DISCHARGE CURRENT VARIATIONS ON MAXIMUM DUTY CYCLE AND FREQUENCY IN UC3842 AND UC3842-"A" PWM ICs by YEAM CHONG HOCK Many designers try to program a precise maximum duty cycle and operating frequency by careful se­

uc3840 "pin compatible"

Abstract: UC3841 UC3840
Contextual Info: UC1851 UC2851 UC3851 Programmable, Off-Line, PWM Controller FEATURES DESCRIPTION • All Control, Driving, Monitoring, and Protection Functions Included • Low-Current Off Line Start Circuit • Voltage Feed Forward or Current Mode Control • High Current Totem Pole Output

uc3840 "pin compatible"

Abstract: SLUA UC3841 UC3840
Contextual Info: UC1841 UC2841 UC3841 Programmable, Off-Line, PWM Controller FEATURES DESCRIPTION • All Control, Driving, Monitoring, and Protection Functions Included • Low-current, Off-line Start Circuit • Voltage Feed Forward or Current Mode Control • Guaranteed Duty Cycle Clamp

uc3825 application notes

Abstract: SLUA125 uc3825 application note uc3825 unitrode U-128 unitrode uc1825a power supply UC3825
Contextual Info: UC1823A,B/1825A,B UC2823A,B/2825A,B UC3823A,B/3825A,B High Speed PWM Controller FEATURES DESCRIPTION • Improved versions of the UC3823/UC3825 PWMs • Compatible with Voltage or Current-Mode Topologies • Practical Operation at Switching Frequencies to 1MHz