AN4105 Design Considerations for Switched Mode Power Supplies Using A Fairchild Power Switch (SPS) in a Flyback Converter Introduction modulation (PWM) based control IC in one package. Moreover, they provide enhanced IC functionality, thereby minimizing the number of additional components needed in an SMPS. Fairchild Power Switch (SPS) ICs are widely used in the power circuits of a variety of equipment, such as color TVs, printers, PCs, monitors, battery chargers and ac adapters. They typically incorporate a variety of enhanced protection functions and permit much reduced power consumption in standby modes. This application note considers the three major functional blocks of an SMPS: Fairchild Power Switch (SPS), flyback converter, and transformer. It discusses a variety of issues important to their design and use in the overall SMPS. Flyback switched mode power supplies (SMPS) are among the most frequently used power circuits in household and consumer electronics. The basic function of an SMPS i
AN4105 Design Considerations for Switched Mode Power Supplies Using A Fairchild Power Switch (FPS) in a Flyback Converter Introduction modulation (PWM) based control IC in one package. Moreover, they provide enhanced IC functionality, thereby minimizing the number of additional components needed in an SMPS. Fairchild Power Switch (FPS) ICs are widely used in the power circuits of a variety of equipment, such as color TVs, printers, PCs, monitors, battery chargers and ac adapters. They typically incorporate a variety of enhanced protection functions and permit much reduced power consumption in standby modes. This application note considers the three major functional blocks of an SMPS: Fairchild Power Switch (FPS), flyback converter, and transformer. It discusses a variety of issues important to their design and use in the overall SMPS. Flyback switched mode power supplies (SMPS) are among the most frequently used power circuits in household and consumer electronics. The basic function of an SMPS i
AN4105 Design Considerations for Switched Mode Power Supplies Using A Fairchild Power Switch (FPS) in a Flyback Converter Introduction modulation (PWM) based control IC in one package. Moreover, they provide enhanced IC functionality, thereby minimizing the number of additional components needed in an SMPS. Fairchild Power Switch (FPS) ICs are widely used in the power circuits of a variety of equipment, such as color TVs, printers, PCs, monitors, battery chargers and ac adapters. They typically incorporate a variety of enhanced protection functions and permit much reduced power consumption in standby modes. This application note considers the three major functional blocks of an SMPS: Fairchild Power Switch (FPS), flyback converter, and transformer. It discusses a variety of issues important to their design and use in the overall SMPS. Flyback switched mode power supplies (SMPS) are among the most frequently used power circuits in household and consumer electronics. The basic function of an SMPS i
AN4105 Design Considerations for Switched Mode Power Supplies Using A Fairchild Power Switch (FPS) in a Flyback Converter Introduction power MOSFET (SenseFET) and pulse width modulation (PWM) based control IC in one package. Moreover, they provide enhanced IC functionality, thereby minimizing the number of additional components needed in an SMPS. Fairchild Power Switch (SPS) ICs are widely used in the power circuits of a variety of equipment, such as color TVs, printers, PCs, monitors, battery chargers and ac adapters. They typically incorporate a variety of enhanced protection functions and they permit a much reduced power consumption in standby modes. Flyback switched mode power supplies (SMPS) are among the most frequently used power circuits in household and consumer electronics. The basic function of an SMPS is to supply regulated power to the load on the secondary, or output side. An SMPS typically incorporates a power transformer, secondary-side rectifier diodes, a switching semiconductor
AN4105 Design Considerations for Switched Mode Power Supplies Using A Fairchild Power Switch (SPS) in a Flyback Converter Introduction one package. Moreover, they provide enhanced IC functionality, thereby minimizing the number of additional components needed in an SMPS. Fairchild Power Switch (SPS) ICs are widely used in the power circuits of a variety of equipment, such as color TVs, printers, PCs, monitors, battery chargers and ac adapters. They typically incorporate a variety of enhanced protection functions and permit much reduced power consumption in standby modes. Flyback switched mode power supplies (SMPS) are among the most frequently used power circuits in household and consumer electronics. The basic function of an SMPS is to supply regulated power to the load on the secondary, or output side. An SMPS typically incorporates a power transformer, secondary side rectifier diodes, switching semiconductor device with control IC, and peripheral circuitry. If the level of integration of the s
AN41050A n Overview AN41050A is a 4-channel driver IC designed for optical disks system such as CD and MD player. It has 3 PWM ( pulse width modulation) input channel and 1 linear input channel .With the implementation of PWM system,Low power consumption and small package are achieved. n Feature l PWM input, PWM output (PVCC1=6 V min 7 V typ 9 V max) l Low power consumption achieved by using DMOS output transistor. l Built-in booster circuit for DMOS drive. l linear input, PWM output (PVCC2= 6 V min 7 Vtyp 13 V max) l Low power consumption achieved by using DMOS output transistor. l Built-in booster circuit for DMOS drive of only ch4. l Controllable carrier frequency by external capacitor adjustment (pin CT). (Frequency is 100 kHz when external capacitor is 100 pF.) l Controllable driver input/output gain by external resistance adjustment. l Incorporating one general-purpose OP-Amp. l Incorporating thermal shutdown circuit. l Incorporating stand-by function th
AN4105 Rev. 0, 04/2010 Automotive High Brightness LED Control Based on the MC9S08MP16 microcontroller by: Oscar Camacho Automotive Systems Enablement Microcontroller Solutions Group 1 Overview This document describes the implementation of a lighting control for high-brightness LED strings based on the MC9S08MP16 family of microcontrollers and a low-cost discrete solution. The embedded closed-loop control algorithm that is implemented ensures the optimal flow of current through the high-brightness LED strings, maximizing their life and avoiding undesirable visual blemishes. The microcontroller implements a closed-loop PID control, along with some features required for automotive lighting applications including dimming, indicating over-temperature, and open-load protections. The right combination of high performance, analog-to-digital converters, FlexTimer module, and connectivity make the MC9S08MP16 the ideal solution for this application. (c) Freescale Semiconductor, Inc., 2010. All rights reserv
witch. 3. Fairchild Application Note AN4102, A Fairchild Power Switch based SMPS for Color Television Receivers. 4. Fairchild Application Note AN4103, A Fairchild Power Switch based Switched Mode Power Supply for Monitor Use. 5. Fairchild Application Note AN4105, Design Considerations for Switched Mode Power Supplies Using a Fairchild Power Switch in a Flyback Converter. 6. Fairchild Application Note AN4106, Multiple Output Switched Mode Power Supplies Using Fairchild Power Switch. 20 Revision 1.0.0 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
nding is 1mm References IPEAK = 3.28A D 1. Transformer and Inductor Design Handbook. 2nd ed. Col. Wm. T. McLyman. Marcel Dekker, Inc., 1988. = 0.61 1 I rms = I PEAK x ------- x D 3 2. Flyback converter design using Fairchild Power Switch. Application note AN4105. Fairchild Electronics, 2000. KA3S0680RB, KA3S0680RFB, KA3S0880RB, KA3S0880RFB, KA3S0765R, KA3S0765RF, KA3S0965R, KA3S0965RF, KA3S1265R, KA3S1265RF, KA5Q0765RT, KA5Q12656RT, KA5Q1265RF, KA5Q1565RF, KA5Q0740RT, KA5Q0945RT 1 = 3.46A x ------- x 0.62 3 = 1.577A The wire diameter f of Np is 0.65mm. 2 2 I dansity ;1mm = Irms ; ---- 2 2 2 5A ;1mm = 1.479A ; ---- 2 2 2 ---- = 0.295mm 2 0.613mm 0.65mm The rms current through secondary B+ is 1.246A in the example. (c)2002 Fairchild Semiconductor Corporation 15 AN4102 APPLICATION NOTE DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF T
. . . . . . . . . . . . . . . . . . . 18 Contents of Kit D A F C E B G Replacement Parts A. Fuselage w/o Engine B. Wing w/o Aluminum Tube C. Tail Set D. Canopy E. Landing Gear F. Painted Cowl G. Painted Wheel Pants HAN4101 HAN4102 HAN4104 HAN4108 HAN4107 HAN4105 HAN4106 Items not shown Pushrod Set Decal Set Aluminum Wing Tube Wing Bolt Set EP Motor Mount HAN4109 HAN4112 HAN4103 HAN4110 HAN4111 Radio and Power Systems Requirements * 4-channel radio system (minimum) with receiver Recommended JR(R) or JR SPORTTM Systems * XP9303 * XP7202 * XP6102 * XP662 * SX600 * S400 Field Equipment Required * Propeller (11x6) * Long Reach Glow Plug Wrench (HAN2510) * 2-Cycle Sport Plug (HAN3001) * 4-Cycle Super Plug (HAN3011) JR XP6102 JR XP9303 JR XP7202 * Fuel * Metered Glow Driver w/Ni-Cd & Charger (HAN7101) * 2-Cycle Super Plug (HAN3006) * Manual Fuel Pump (HAN118) Optional Field Equipment * FieldmateTM Pre-built Flight Box (HAN117) * Blue Block After Run Oil (EVOX1000) * 12V 7Ah Sealed Battery (HAN102) * Cle
bove, the wire diameter f of 13V bias winding is 1mm References IPEAK = 3.28A D 1. Transformer and Inductor Design Handbook. 2nd ed. Col. Wm. T. McLyman. Marcel Dekker, Inc., 1988. 2. Flyback converter design using Fairchild Power Switch. Application note AN4105. Fairchild Electronics, 2000. KA3S0680RB, KA3S0680RFB, KA3S0880RB, KA3S0880RFB, KA3S0765R, KA3S0765RF, KA3S0965R, KA3S0965RF, KA3S1265R, KA3S1265RF, KA5Q0765RT, KA5Q12656RT, KA5Q1265RF, KA5Q1565RF = 0.61 1 I rms = I PEAK x ------- x D 3 1 = 3.46A x ------- x 0.62 3 = 1.577A The wire diameter f of Np is 0.65mm. 2 2 I dansity ;1mm = Irms ; ---- 2 2 5A ;1mm = 1.479A ; ---- 2 2 2 2 ---- = 0.295mm 2 0.613mm 0.65mm The rms current through secondary B+ is 1.246A in the example. (c)2001 Fairchild Semiconductor Corporation 15 AN4102 APPLICATION NOTE DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY
above, the wire diameter f of 13V bias winding is 1mm References IPEAK = 3.28A 1. Transformer and Inductor Design Handbook. 2nd ed. Col. Wm. T. McLyman. Marcel Dekker, Inc., 1988. 2. Flyback converter design using Fairchild Power Switch. Application note AN4105. Fairchild Electronics, 2000. D = 0.61 1 I rms = I PEAK x ------- x D 3 1 = 3.46A x ------- x 0.62 3 = 1.577A The wire diameter f of Np is 0.65mm. 2 2 I dansity ;1mm = Irms ; ---- 2 2 2 5A ;1mm = 1.479A ; ---- 2 2 2 ---- = 0.295mm 2 0.613mm 0.65mm The rms current through secondary B+ is 1.246A in the example. (c)2001 Fairchild Semiconductor Corporation 15 AN4102 APPLICATION NOTE DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHER
ove, the wire diameter f of winding is 1mm. 13V bias IPEAK = 3.28A References 1. Transformer and Inductor Design Handbook. 2nd ed. Col. Wm. T. McLyman. Marcel Dekker, Inc., 1988. D 2. Flyback converter design using Fairchild Power Switch. Application note AN4105. Fairchild Electronics, 2000. KA3S0680RB, KA3S0680RFB, KA3S0880RB, KA3S0880RFB, KA3S0765R, KA3S0765RF, KA3S0965R, KA3S0965RF, KA3S1265R, KA3S1265RF, KA5Q0765RT, KA5Q12656RT, KA5Q1265RF, KA5Q1565RF, KA5Q0740RT, KA5Q0945RT = 0.61 I rms = I PEAK 1 x ------- x D 3 1 = 3.46A x ------- x 0.62 3 = 1.577A The wire diameter f of Np is 0.65mm. 2 2 I d e nsity ;1mm = Irms ; ---- 2 2 5A ;1mm = 1.479A ; ---- 2 2 2 2 ---- = 0.295mm 2 0.613mm 0.65mm The rms current through secondary B+ is 1.246A in the example. (c)2002 Fairchild Semiconductor Corporation 15 AN4102 APPLICATION NOTE DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES
AN4105 Flyback Converter Design Guide with SPS Sangtae-Im PD division Understanding the Basic Operation The purpose of this note is to provide an understanding of power circuits that are used in the SMPS. 1. The Transformer 1.1 The Need for a Transformer There are three reasons for needing a transformer in the power conversion circuit. The rst is for safety. For a power source, a large voltage, applied between the ground and rectied voltages, can cause an electric shock. However, after isolating the primary and secondary sides with a transformer and grounding the output voltage GND,and then connecting it to an electronic mechanism, the electronic mechanism would be safe to touch. The second reason is for voltage conversion. For example, if a DC/DC converter (Buck Converter), Figure 1 (b), switching at 50kHz is used to obtain 5V from 100V, the control circuit must control a short time of around 1s, which is not an easy task. Even if this was possible, the internal voltage and current of each eleme