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LT1172CT#31 Linear Technology IC IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,ZIP,5PIN,PLASTIC, Switching Regulator or Controller visit Linear Technology - Now Part of Analog Devices
LT1172MJ8#PBF Linear Technology IC IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,DIP,8PIN,CERAMIC, Switching Regulator or Controller visit Linear Technology - Now Part of Analog Devices
LTC4416IMS Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10, PLASTIC, MSOP-10, Power Management Circuit visit Linear Technology - Now Part of Analog Devices
LTC2913HMS-1#TR Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10, PLASTIC, MSOP-10, Power Management Circuit visit Linear Technology - Now Part of Analog Devices
LTC4416EMS-1#TR Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10, PLASTIC, MSOP-10, Power Management Circuit visit Linear Technology - Now Part of Analog Devices
LTC2913IMS-2 Linear Technology IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10, PLASTIC, MSOP-10, Power Management Circuit visit Linear Technology - Now Part of Analog Devices

uc3844 smps power supply

Catalog Datasheet MFG & Type PDF Document Tags

uc3845 application smps

Abstract: SMPS CIRCUIT DIAGRAM UC3842 www.fairchildsemi.com UC3842/UC3843/UC3844/UC3845 SMPS Controller Features · · · · Low Start , driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 , Gain Power Supply Rejection Ratio Output Sink Current Output Source Current High Output Voltage Low Output Voltage CURRENT SENSE SECTION Gain Maximum Input Signal Power Supply Rejection Ratio Input Bias , Fairchild P/N UC3844 - SMPS Controller SEARCH | Parametric | Cross Reference space Fairchild
Fairchild Semiconductor
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uc3845 application smps SMPS CIRCUIT DIAGRAM UC3842 uc3844 smps power supply uc3843 dc dc converter UC3842 smps design uc3844 reference smps UC3842/UC3843/UC3844/UC3845 500KH UC3845 14-SOP 14SOP UC3845D

supertex AN-H29

Abstract: T flip flop IC shows a simplified typical configuration of a switch mode power supply, SMPS, using the Supertex LR7 in the startup circuit. The Supertex LR7 is a high voltage switch mode power supply start-up circuit , voltage to power the PWM IC after start-up. The LR7 is used to supply power for the PWM IC only during start-up. After start-up, the LR7 turns off and the auxiliary winding is used to supply power for the PWM , LR7 GND VOUT VCC PWM IC UC3844 C1 Figure 1: Simplified SMPS using LR7 3 LR745
Supertex
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supertex AN-H29 T flip flop IC uc3844 transformer design uc3844 PWM power supply application note SMPS CIRCUIT DIAGRAM for computers transistor marking code 1325 LR745N3 LR745N8 240VAC AN-H28 AN-H29

uc3842

Abstract: 12v dc power supply with uc3845 www.fairchildsemi.com UC3842/UC3843/UC3844/UC3845 SMPS Controller Features · · · · Low Start , driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 , Gain Power Supply Rejection Ratio Output Sink Current Output Source Current High Output Voltage Low Output Voltage CURRENT SENSE SECTION Gain Maximum Input Signal Power Supply Rejection Ratio Input Bias , The UC3842/UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially
Fairchild Semiconductor
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12v dc power supply with uc3845 uc3845 reference smps application notes uc3842 uc3842 smps power supply with uc3842 with circuit diagram UC3842 smps diagram UC3845D1X

computer smps circuit diagram

Abstract: uc3844 transformer design configuration of a switchmode power supply, SMPS, using the Supertex LR745 in the start-up circuit. The , Very low power consumption after start-up The Supertex LR745 is a high input voltage SMPS startup , LR745 is a high voltage, switch-mode power supply start-up circuit which has 3 terminals: VIN, GND, and , LR745 is used to supply power for the PWM IC only during start-up. After start-up, the LR745 turns off and the auxiliary winding is used to supply power for the PWM IC. Figure 2 shows the typical current
Supertex
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LR745N8-G computer smps circuit diagram 24 volts smps smps 12 volt smps 12v to 16v SMPS CIRCUIT DIAGRAM USING TRANSISTORS smps circuit diagram LR745N3-G DSPD-3TO243AAN8 D070908 DSFP-LR745 B123008

uc3844 transformer design

Abstract: uc3844 reference smps Figure 1 shows a simplified typical configuration of a switchmode power supply, SMPS, using the Supertex , www.supertex.com 2 LR745 The Supertex LR745 is a high voltage, switch-mode power supply start-up circuit which , , Unitrode part #UC3844. An auxiliary winding on the transformer is used to generate a VCC voltage to power the PWM IC after start-up. The LR745 is used to supply power for the PWM IC only during start-up. After start-up, the LR745 turns off and the auxiliary winding is used to supply power for the PWM IC
Supertex
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B0912 uc3844 transformer UC3844 application B091208

T flip flop pin configuration

Abstract: uc3844 transformer design configuration of a switch mode power supply, SMPS, using the Supertex LR7 in the startup circuit. The LR7's VOUT , LR745 Block Diagram Detailed Description The Supertex LR7 is a high voltage switch mode power supply , transformer is used to generate a VCC voltage to power the PWM IC after start-up. The LR7 is used to supply , is used to supply power for the PWM IC. Figure 2 shows the typical current and voltage waveforms at , an SMPS that is required to power small as well as large loads and is also required to power up
Supertex
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T flip flop pin configuration

uc3844 transformer design

Abstract: T flip flop IC Figure 1 shows a simplified typical configuration of a switchmode power supply, SMPS, using the Supertex , GND + comp2 ­ R3 2 LR745 The Supertex LR745 is a high voltage, switch-mode power supply , , Unitrode part #UC3844. An auxiliary winding on the transformer is used to generate a VCC voltage to power the PWM IC after start-up. The LR745 is used to supply power for the PWM IC only during start-up. After start-up, the LR745 turns off and the auxiliary winding is used to supply power for the PWM IC
Supertex
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T flip flop IC no DSPD-3TO92N3 D070808 A072108
Abstract: to generate a VCC voltage to power the PWM IC after start-up. The LR745 is used to supply power for , used to supply power for the PWM IC. Figure 2 shows the typical current and voltage waveforms at , high voltage, switch-mode power supply start-up circuit which has 3 terminals: VIN, GND, and VOUT. An , . Typical Application Figure 1 shows a simplified typical configuration of a switchmode power supply , 13.25V under minimum load conditions. Consider an SMPS that is required to power small as well as large Supertex
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1000/B 2000/R F111010 C080113

T flip flop IC

Abstract: uc3844 smps power supply supply, SMPS, using the Supertex LR7 in the startup circuit. The Supertex LR7 is a high voltage switch mode power supply start-up circuit, which has 3 terminals: VIN, GND, and VOUT. An input voltage range , transformer is used to generate a VCC voltage to power the PWM IC after startup. The LR7 is used to supply , is used to supply power for the PWM IC. Figure 2 shows the typical current and voltage waveforms at , SMPS may power up too fast with a small load, not allowing the VCC voltage to fall below 13.25V. For
Supertex
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SMPS, Computers, CIRCUIT DIAGRAM PWM IC smps ic 8 pin ic LOW POWER OFF LINE SMPS transistor smps high voltage circuit diagram of high power smps

T flip flop IC

Abstract: SMPS CIRCUIT DIAGRAM for computers supply, SMPS, using the Supertex LR7 in the startup circuit. The Supertex LR7 is a high voltage switch mode power supply start-up circuit, which has 3 terminals: VIN, GND, and VOUT. An input voltage range , transformer is used to generate a VCC voltage to power the PWM IC after startup. The LR7 is used to supply , is used to supply power for the PWM IC. Figure 2 shows the typical current and voltage waveforms at , fall below 13.25V under minimum load conditions. Consider an SMPS that is required to power small as
Supertex
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uc3844 applications 5v power supply with uc3844 6 pin smps IC LR745ND

uc3844 transformer design

Abstract: p024 ZENER DIODE configuration of a switch mode power supply, SMPS, using the Supertex LR7 in the startup circuit. The LR7's VOUT , power consumption after start-up General Description The Supertex LR7 is a high input voltage SMPS , LR745 Block Diagram Detailed Description The Supertex LR7 is a high voltage switch mode power supply , transformer is used to generate a VCC voltage to power the PWM IC after startup. The LR7 is used to supply , is used to supply power for the PWM IC. Figure 2 shows the typical current and voltage waveforms at
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p024 ZENER DIODE uc3844 14 pin ic configuration switch mode power supply using uc3844 p023 transistor

computer smps circuit diagram

Abstract: uc3844 smps power supply shows a simplified typical configuration of a switch mode power supply, SMPS, using the Supertex LR7 in the startup circuit. The Supertex LR7 is a high voltage switch mode power supply start-up circuit , VCC voltage to power the PWM IC after startup. The LR7 is used to supply power for the PWM IC only during start-up. After start-up, the LR7 turns off and the auxiliary winding is used to supply power , LR7 GND VOUT VCC PWM IC UC3844 C1 Figure 1: Simplified SMPS using LR7 14-7 14
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PWM IC 14 PIN pwm smps computer smps circuit 7 pin SMPS UC3844 application note 24 volt output smps design datasheet

uc3844 PWM power supply application note

Abstract: 3 watt 70v zener diode connected to the VCC line of a PWM IC, Unitrode part #UC3844. The LR7 is used to supply power for the PWM , supply power for the load. EAUX = = VIN LR7 VOUT VCC VREF PWM IC UC3844 GND 1 ( 2 , this approach by consuming negligible power after the SMPS has started. The circuit in Figure 1 is an , Unitrode UC3844 PWM IC during start-up. The commonly used approach utilizes a power resistor and a zener , 1.0 Figure 1: SMPS with LR7 start-up 3-90 LR Series Applications The worse case power
Supertex
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UC3844N 3 watt 70v zener diode 3 watt smps circuit 5v pc smps pwm design UNITRODE DIODE 240 12 watt smps ic AN-D25 8333W 1/100KH

A773* Transistor

Abstract: typical configuration of a switch mode power supply, SMPS, using the Supertex LR7 in the start­ up circuit. The Supertex LR7 is a high voltage switch mode power supply start-up circuit, which has 3 , voltage to power the PWM IC after start­ up. The LR7 is used to supply power for the PWM IC only during start-up. After start-up, the LR7 turns off and the auxiliary winding is used to supply power for the PWM , an SMPS that is required to power small as well as large loads and is also required to power up
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OCR Scan
A773* Transistor 0Q0M71

UC3842 smps design

Abstract: UC3843 application note www.fairchildsemi.com UC3842/UC3843/UC3844/UC3845 SMPS Controller Features Description · · · · The UC3842/UC3843/UC3844/UC3845 are fixed frequency current-mode PWM controller. They , 4V 65 90 - dB Power Supply Rejection Ratio PSRR 12V VCC 25V 60 70 - , Maximum Input Signal VI(MAX) Power Supply Rejection Ratio PSRR Input Bias Current 12V VCC , totempole output Ideally suited for driving a power MOSFET. Protection circuity Includes built in
Fairchild Semiconductor
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UC3843 application note uc3845 smps UC3845 application note uc3845 PWM power supply application note UC3842 mosfet driver UC3845 dc dc applications UC3842N UC3843N UC3845N UC3842D UC3843D UC3844D

T flip flop IC

Abstract: T flip flop IC no Application Figure 1 shows a sim plified typical configuration of a switch mode power supply, SMPS, using the , Detailed Description The Supertex LR7 is a high voltage switch mode power supply start-up circuit, which , , Unitrode part #UC3844. An auxiliary winding on the transform er is used to generate a Vcc voltage to power the PWM IC after start up. The LR7 is used to supply power for the PWM IC only during start-up. After start-up, the LR7 turns off and the auxiliary winding is used to supply power for the PWM IC. Figure 2
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OCR Scan
T flip flop ic number
Abstract: Typical Application Figure 1 shows a sim plified typical configuration of a switch mode power supply , mode power supply start-up circuit, which has 3 term inals: V,N, GND, and V0UT. An input voltage , LR7 is used to supply power for the PWM IC only during start-up. After start-up, the LR7 turns off and the auxiliary winding is used to supply power for the PWM IC. Figure 2 shows the typical current , SMPS may power up too fast with a small load, not allowing the Vcc voltage to fall below 13.25V. For -
OCR Scan

UC3844N

Abstract: uc3844 smps power supply PWM IC, Unitrode part #UC3844. The LR7 is used to supply power for the PWM IC only during startup , supply power for the load. EAUX = = VIN LR7 VOUT VCC VREF PWM IC UC3844 GND 1 , replaces this approach by consuming negligible power after the SMPS has started. The circuit in Figure 1 , voltage for the Unitrode UC3844 PWM IC during start-up. The commonly used approach utilizes a power , )(1.414)V/(1.0mA + 100µA) R = 154K Operating the power supply from rectified 240VAC, R will dissipate
Supertex
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CIRCUIT diagram OF SMPS IN PC VN0660N5 T flip flop CMOS IC

12v dc power supply with uc3845

Abstract: uc3843 dc dc converter www.fairchildsemi.com UC3842/UC3843/UC3844/UC3845 SMPS Controller Features Description · , output for driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off , /UC3843/UC3844/UC3845 Absolute Maximum Ratings Parameter Symbol Value Unit Supply Voltage , (Note3) 65 90 - dB Power Supply Rejection Ratio PSRR 12V VCC 25V (Note3) 60 , (MAX) Power Supply Rejection Ratio PSRR Input Bias Current 12V VCC 25V (Note 1,3
Fairchild Semiconductor
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uc3843 dc 5v uc3842 application circuit power supply with uc3842 DATA UC3843 AN UC3845 UC3842D1 UC3843D1 UC3844D1 UC3845D1

uc3842 circuit diagram

Abstract: UC3842 mosfet driver www.fairchildsemi.com UC3842/UC3843/UC3844/UC3845 SMPS Controller Features Description · · · · The UC3842/UC3843/UC3844/UC3845 are fixed frequency current-mode PWM controller. They , Voltage Gain VI(E>A) GVO V1 = 2.5V Power Supply Rejection Ratio PSRR 12V VCC 25V 60 , totempole output Ideally suited for driving a power MOSFET. Protection circuity Includes built in under-voltage lockout and current limiting. TheUC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off
Fairchild Semiconductor
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uc3842 circuit diagram uc3845 applications MOSFET uc3843 UC3842 Open Loop Circuit diagram UC3843 diagram UC3843 circuit diagram
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