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LT1070HVIT#06PBF Linear Technology LT1070 - 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; Pins: 5; Temperature Range: -40°C to 85°C visit Linear Technology - Now Part of Analog Devices Buy
LT1070CT#30PBF Linear Technology LT1070 - 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; Pins: 5; Temperature Range: 0°C to 70°C visit Linear Technology - Now Part of Analog Devices Buy
LT1070HVCT Linear Technology LT1070 - 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; Pins: 5; Temperature Range: 0°C to 70°C visit Linear Technology - Now Part of Analog Devices Buy
LT1070CT#PBF Linear Technology LT1070 - 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; Pins: 5; Temperature Range: 0°C to 70°C visit Linear Technology - Now Part of Analog Devices Buy
LT1070HVIT Linear Technology LT1070 - 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; Pins: 5; Temperature Range: -40°C to 85°C visit Linear Technology - Now Part of Analog Devices Buy
LT1070HVCT#PBF Linear Technology LT1070 - 5A and 2.5A High Efficiency Switching Regulators; Package: TO-220; Pins: 5; Temperature Range: 0°C to 70°C visit Linear Technology - Now Part of Analog Devices Buy

frequency and duty cycle control lt1070

Catalog Datasheet MFG & Type PDF Document Tags

LT1070

Abstract: flyback 200w , control, and protection circuitry. Integration of all functions allows the LT1070/LT1071 to be built in a , Current 3V , Switch Current Limit (LT1070) DutyCycle25°C Duty Cycle , . Note 1: Measured with Vc in hi clamp, VFB=0.8V. Isw=4A for LT1070 and 2A forLTI 071. Note t For duty , lt1070 power supply current is found by multiplying driver current by duty cycle, then adding quiescent
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LT1071 LT1072 AN-19 AN-25 LT1070HVCT flyback 200w switch mode power supply 12V,2A 92113 LT1070 data sheet dc dc flyback 200w ci lt1070 LT1070/LT1071 LT1070MK

LT1070

Abstract: LT1070C all oscillator, control, and protection circuitry. Integration of all functions allows the LT1070 to , ) Control threshold voltage Duty cycle = 0 25'C 0.8 0.9 1.08 V Full range 0.6 1.25 flyback , Frequency 25°C 35 40 45 kHz Full range 33 47 Maximum duty cycle VFB = 1 V 25°C 90% 92% 97% td , 13 Maximum duty cycle vs Junction temperature 14 !|N(off) Shutdown-mode input current vs Control , excellent ac and dc input and output regulation. The LT1070 is much easier to use than the low-power
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D3222 LT1070HV 100-C LT1070HVCKC LT1070HVCKV LT1070CKC LT1070C LINEAR LT1070HV 27110 AA N 12110 transistor 1988-HEVISED

LT1071

Abstract: oscillator, control and protection circuitry. Integration of all func­ tions allows the LT1070/LT1071 to , , V q = 0.6V Control Pin Threshold Duty Cycle = 0 Minimum Input Voltage â'¢ 500 2 , LT1071 Switch Current Limit (LT1070) Duty Cycle < 50%, Tj > 25°C Duty Cycle < 50%, Tj < 25 , LT1070 POWER SUPPLY CURRENT IS FOUND BY MULTIPLYING DRIVER CURRENT BY DUTY CYCLE, THEN ADDING QUIESCENT , intended to provide specifications, graphs and a general functional description of the LT1070/LT1071
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1070/LT1071 T0-220 LT1074/LT1076 LT1170/LT1171/ LT1172 LT1370/LT1371

LT1171 buck

Abstract: op amp 40v 100w Switch Current Limit (LT1070) Duty Cycle 50%, TJ 25°C Duty Cycle 50%, TJ < 25°C Duty Cycle = 80 , 4A for LT1070 and 2A for LT1071. Note 5: For duty cycles (DC) between 50% and 80%, minimum , OUTPUT CURRENT CONDITIONS, DUTY CYCLE FOR MOST CIRCUITS WILL APPROACH 10% OR LESS *AVERAGE LT1070 , U OPERATION The LT1070/LT1071 is a current mode switcher. This means that switch duty cycle is , LT1070/LT1071 5A and 2.5A High Efficiency Switching Regulators DESCRIPTIO U FEATURES s s
Linear Technology
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LT1171 buck op amp 40v 100w flyback transformer HV LT1765-1 TA0317 off-line flyback regulator 100w LT1374/LT1376 LT1765 TSSOP-16E
Abstract: switch turn-on Frequency Maximum duty cycle id Flyback sense delay time Duty cycle VpB = = TEST , current Duty cycle Junction temperature Control voltage Input voltage Junction temperature Junction , , high-efficiency switch is included in the package along with all oscillator, control, and protection circuitry , techniques, they provide excellent ac and dc input and output regulation. The LT1070 is much easier to use than the low-power control chips that are presently available and has many unique features that are not -
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1988-REVISED LT1070HVIKC LT1070IKC LT1070CVKV LT1070HVIKV LT1070IKV

ec 35c transformer

Abstract: ltkd Q Q A/V A/V lUM Switch Current Limit (LT1070) DutyCycle , Increase During Switch On-Time Switching Frequency i Maximum Switch Duty Cycle Flyback Sense Delay Time , DUTY CYCLE (%) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) XT 5-39 LT1070 , , DUTY CYCLE FOR MOST CIRCUITS WILL APPROACH 10% OR LESS. 5-40 LT1070/LT1071 TYPICAL PERFORIMI)« , LT1070/LT1Q71 r j w TECHNOLOGY m 5A and 2.5A High Efficiency Switching Regulators
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ec 35c transformer ltkd lti070 LT1070/LT1Q71 ENGINEERING92113 T0-220T LT1070HVMK LT1070CK LT1070HVCK

LT1070

Abstract: LT1070CT Frequency q Maximum Switch Duty Cycle Flyback Sense Delay Time Shutdown Mode Supply Current Shutdown , , VFB = 0.8V. ISW = 4A for LT1070 and 2A for LT1071. Note 5: For duty cycles (DC) between 50% and 80 , FEATURES s s s s s s s s s s LT1070/LT1071 5A and 2.5A High Efficiency Switching Regulators , current, high efficiency switch is included on the die along with all oscillator, control and protection , obtained with 3-pin linear regulators. The LT1070/LT1071 operate with supply voltages from 3V to 60V, and
Linear Technology
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LT1070CT LTspice LT1172 boost converter 60v cuk converter 5V 10A LT1074 design manual pin diagram of LM308 Op Amp IC LT1070HVIT LT1070IT 06PBF

LT/SG3527A

Abstract: Frequency A I in â'¢ Maximum Switch Duty Cycle DC (max) AN AN 8 4 % ILS 1.5 , / T u r LT1070/LT1071 m TECHNOLOGY 5A and 2.5A High Efficiency Switching , Control Voltage to Switch CurrentTransconductance LT1070 LT1071 Switch Current Limit (LT1070) Duty Cycle
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LT/SG3527A

ci lt1070 RT

Abstract: lt1070 , control, and protection circuitry. Integration of all functions allows the LT1070 to be built in a , de input and output régulation. The LT1070 is much easier to use than the low-power control chips , ) Control threshold voltage Duty cycle = 0 25'C 0.8 0.9 1.08 V Full range 0.6 1.25 flyback , mA/A f Frequency 25°C 35 40 45 kHz Full range 33 47 Maximum duty cycle VFB = 1 V 25°C 90% 92 , transconductance 25°C 8 mho ISW(lim) Switch current limit Duty cycle = 50%, Vpg = 0.8 V Full range 5 13 A Duty
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ci lt1070 RT TOTALLY ISOLATED CONVERTER high efficiency current mode flyback converter wi LU070 IN4001 IN914

LT1074 design manual

Abstract: "buck converter" LT1076 90 LT1070 LT1071 q q LT1070 LT1071 Switch Current Limit (LT1070) Duty Cycle 50 , Switching Frequency q DC (Max) Maximum Switch Duty Cycle 35 33 90 Flyback Sense Delay Time , : Measured with VC in hi clamp, VFB = 0.8V. ISW = 4A for LT1070 and 2A for LT1071. Note 5: For duty cycles , *AVERAGE LT1070 POWER SUPPLY CURRENT IS FOUND BY MULTIPLYING DRIVER CURRENT BY DUTY CYCLE, THEN ADDING , LT1070/LT1071 5A and 2.5A High Efficiency Switching Regulators DESCRIPTION U FEATURES s
Linear Technology
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frequency and duty cycle control lt1070 200w dc to ac inverter Circuit diagram BV 410 hv flyback transformer LT1074 24v

Ferroxcube 3C8

Abstract: AN19-16 operate near 50% duty cycle and require maximum possible output power. To solve this problem, switch , cycle to 4A at 80% duty cycle. The LT1071 and LT1072 will also be specified this way. High Supply , IZ 6mA + ISW(0.0015 + DC/40): ISW = LT1070 average switch current during "on" time DC = duty cycle , into the current amplifier input. This ramp starts at 40% duty cycle, and is the source of the bend , LTXXXX · AN19 F07 Figure 7. Duty Cycle vs VC Voltage It is a permanent condition when the LT1070 is
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Ferroxcube 3C8 AN19-16 Ferrite 3c8 flyback zener f41 6W Buck Topology kelvin 1102 AN19-80

flyback converter 2A 15V

Abstract: LT1070HVCT LT1070 LT1071 Switch Current Limit (LT1070) Duty Cycle ≤ 50%, TJ ≥ 25°C Duty Cycle ≤ 50 , 97 % âIIN âISW Switching Frequency q DC (Max) Maximum Switch Duty Cycle Flyback , 0.8V. ISW = 4A for LT1070 and 2A for LT1071. Note 5: For duty cycles (DC) between 50% and 80 , *AVERAGE LT1070 POWER SUPPLY CURRENT IS FOUND BY MULTIPLYING DRIVER CURRENT BY DUTY CYCLE, THEN ADDING , LT1070/LT1071 5A and 2.5A High Efficiency Switching Regulators DESCRIPTIO FEATURES s s s
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flyback converter 2A 15V 1070/L

IC 92112 Q101

Abstract: Ferroxcube 3C8 80% duty cycle. The LT1071 and LT1072 will also be specified this way. High Supply Voltages It has , (0.0015 + DC/40): ISW = LT1070 average switch current during "on" time DC = duty cycle For ISW = 4A, DC , ERROR AMP VC + The LT1070 is a current mode switcher. This means that switch duty cycle is , ramp fed into the current amplifier input. This ramp starts at 40% duty cycle, and is the source of , that the definition of duty cycle allows only for values between 0 and 1. The formula for VOUT
Linear Technology
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IC 92112 Q101 24v primary center tapped buck and boost power HV Flyback TRANSFORMERS toroid ferrite smps inductor 92112 q103 FERRITE TRANSFORMER 20khz toroid AN19-79

LINEAR LT1070HV

Abstract: amplification Control threshold voltage V c = 1.5 V, High state, Low state, V c = 0.7 V to 1.4 V Duty cycle = 0 , switch is included in the package along with all oscillator, control, and protection circuitry , techniques, they provide excellent ac and dc input and output regulation. The LT1070 is much easier to use than the low-power control chips that are presently available and has many unique features that are not , 0.15 8 5 0.24 Q mho Duty cycle = 50%, V p g = 0.8 V Duty cycle = 80%, V p g = 0.8 V V F b =
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1988-R

peltier cooler wiring diagram

Abstract: 801-2003-01 reference and controls the Vsw pin's duty cycle and current, closing a loop. Since the LT1070 is trying to , shows a motor speed regulator. The LT1070 provides simplicity and switch-mode control efficiency , the LT1070 to begin pulsing its Vsw pin at maximum duty cycle. The A = HI = 140VAC LOW = 90VAC B = , outlook on switchers was the LT1070 family. In terms of circuit construction and ease of use they really , characteristics. Size, core material, operating frequency, voltage and current influence inductor design. A= 10V
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peltier cooler wiring diagram 801-2003-01 Cambion peltier regulator 48V 118ME 48V 100W zener diode AN25-23 AN25-24

mallory capacitor fp 150

Abstract: lt1072 80% duty cycle. The LT1071 and LT1072 will also be specified this way. High Supply Voltages It has , (0.0015 + DC/40): ISW = LT1070 average switch current during "on" time DC = duty cycle For ISW = 4A, DC , ERROR AMP VC + The LT1070 is a current mode switcher. This means that switch duty cycle is , ramp fed into the current amplifier input. This ramp starts at 40% duty cycle, and is the source of , definition of duty cycle allows only for values between 0 and 1. The formula for VOUT therefore shows a
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mallory capacitor fp 150 tapped inductor boost converter mallory capacitor fp MALLORY CAPACITORS sx an19fc EX 0045 bm diode zener

LT1070

Abstract: frequency and duty cycle control lt1070 filters the Vc pin to DC and the LT1070 transitions into "normal" operation. With the Vc pin at DC it is , R1-R2 feedback divider. In fact, A1 is still duty cycle modulating, but at a rate far above R6-C2's , Oscillation Frequency for Figure 2 For LT1070 literature call 800-637-5545. For help with an application call , and the Vc pin. The LT1070's internal feedback amplifier and reference are not used. Figure 3 shows , Vc pin (trace C) low, putting the IC in its 50/iA shutdown mode. The Vsw Pin (trace D) is high, and
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MUR8100 1N4148 74C04 DN11-1 DN11-2

BMF 11A

Abstract: r02f % duty cycle was bothersome because many designs operate near 50% duty cycle and require maximum possible , linearly decreasing function, from 5A at 50% duty cycle to 4A at 80% duty cycle. The LT1071 and LT1072 will , amplifier input. This ramp starts at -40% duty cycle, and is the source of the bend in the Vc vs duty cycle , regulator depends only on the duty cycle of the switching network, and input voltage. This is a very , (continuous mode) (6) DC is duty cycle, the ratio of S1 "on" time to "off" time, assuming that S1 and S2
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BMF 11A r02f 16V7K MALLORY CAPACITOR CATALOG 20h inductor 630fl

801-2003-01

Abstract: Cambion peltier compares the feedback pin voltage to its internal 1.24V reference and controls the VSW pin's duty cycle and current, closing a loop. Since the LT1070 is trying to force its feedback pin to 1.24V, output , , core material, operating frequency, voltage and current influence inductor design. 5VIN 22µF , ICs. A 75V, 5A (LT1070HV) on-chip power switch, complete control loop, oscillator and only 5 pins eliminate a lot of the ambiguity of other devices. Internal details and operating features of the LT1070
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mosfet 10a 500v 40khz negative voltage regulator, 48V an25fa d504cs flyback transformer construction

P50N05E

Abstract: dc-dc converter royer control A1 's gain. The 0.22p.F capacitor frequency compensates the loop, and thethermaliy mated diodes , oscillations. L3's secondary RC network adds additional high frequency damping. Without control of quiescent , CIA's switched control loop. As input voltage and loading conditions change C1A adjusts the number of clock pulses allowed to bias Q1-Q3, maintaining loop control. When the 1 and 2 signals reverse , (Vc) pulls high (trace C). This causes full duty cycle 40kHz switching at the Vsw pin (trace D). The
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P50N05E dc-dc converter royer p50n05 PE-65050 2n3507 1amp IRFZ44 mosfet for square wave inverter
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