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RF transformer turn ratio 12

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Abstract: switch ON and OFF alternately. The turn ratio of Transformer (n/m) is 2/1 for this application. For an , overcome by selection of a specialized core. Minimizing the transformer turn ratio to 1:2 or 1:3 was , Turn Ratio, which means 1:4 Impedance ratio of the transformer. www.microsemi.com Rev. B, 9/9 , technical difficulty for this push pull RF application is the transformer. The high current, high frequency , transformer T1 have a good RF ground. Figure 7 illustrates the capacitor location to T1 and the red circle ... Microsemi
Original
datasheet

17 pages,
735.26 Kb

step down transformer 230 v to 12 v 220V ferrite core transformer free data power amplifier 13.56MHz step down transformer 230 v to 6 v 13.56Mhz rf amplifier step down transformer 12 step down transformer 230 v to 15 v 13.56Mhz rf amplifier module 13.56Mhz class e power amplifier 232 Matching Transformer line matching step down transformer 220V to 12V DRF1300 2kw mosfet DRF1300 13.56MHZ 3KW GENERATOR DRF1300 DRF1300 DRF1300 SCHEMATIC 5kw power supply 30A mosfet 5kw high power rf 220V ferrite core transformer 12v to 220v step up transformer TEXT
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Abstract: switch ON and OFF alternately. The turn ratio of Transformer (n/m) is 2/1 for this application. For an , overcome by selection of a specialized core. Minimizing the transformer turn ratio to 1:2 or 1:3 was , technical difficulty for this push pull RF application is the transformer. The high current, high frequency , , turn on MOSFET PS_2 and slowly increase to 40V. iii. While monitoring the RF power and waveform from , . To turn off, reverse the turn on procedure. If the RF output waveform (Vds) and/or RF power level ... Microsemi
Original
datasheet

17 pages,
835.98 Kb

rf transformer DRF1300 TEXT
datasheet frame
Abstract: phase causing Q1 and Q2 to switch ON and OFF alternately. The turn ratio of Transformer (n/m) is 2/1 , . Minimizing the transformer turn ratio to 1:2 or 1:3 was required to avoid power loss. Refer to the following , Turn Ratio, which means 1:4 Impedance ratio of the transformer. 28/28 http://www.microsemi.com , are shown in Fig.2. A key technical difficulty for this push pull RF application is the transformer , primary winding of power transformer T1 have a good RF ground. Fig 7 illustrates the capacitor location ... Microsemi
Original
datasheet

28 pages,
519.4 Kb

RF transformer turn ratio step down transformer 220V to 12V step down transformer 240 v to 15 v 220V ferrite core transformer free data Class B power amplifier, 13.56MHz 13.56Mhz rf amplifier 220V ferrite core transformer step down transformer 230 v to 12 v step down transformer 230 v to 15 v Class E power amplifier, 13.56MHz DRF1300 DRF1300 DRF1300 13.56Mhz rf amplifier module 12v to 220v step up transformer SCHEMATIC 5kw power supply 30A 2kw mosfet 13.56MHZ 3KW GENERATOR 13.56Mhz class e power amplifier mosfet 5kw high power rf TEXT
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Abstract: transformer transitions and turn off the active MOSFET before the transformer pulse switches. This is , Switching frequency: 250KHz Transformer turns ratio: 5:1 Primary switches: IRFS31N20D IRFS31N20D (200V, 30Vgs, 82mohm , current. Since the forward converter has a transformer ratio of 5:1 and a low input voltage of 36Vdc, the , is the time by which gate turn off leads the next transformer rising edge; tpf is the pre-fire time by which the opposite gate turn on leads the transformer rising edge; and tdt is the dead time ... International Rectifier
Original
datasheet

22 pages,
163.51 Kb

275V X2 0.68uf Rectifier diode IN4148 FZT748 IR2110 application note MB3769A in4148 zener diode 43a Hall AN-1041 ir2110 buck X2 0.1uF 275V ir2110 two Transistor Forward AN IR2110 IR2110 equivalent 200khz transformer ic ir2110 43a Hall effect pin out 43a hall sensor two transistor forward 43a Hall Effect Magnetic Sensors IR1176 TEXT
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Abstract: transformer coil voltage at turn off. This occurs because the current remaining in the inductor during the , recovery diode; reduce the MOSFET's gate operating current at turn on; or, increase the transformer , , and the capacitance of the transformer windings. At turn on, the total equivalent capacitor , once turn on starts. Duty ratio control with a minimum turn on time is implemented through a non , considerations VD The turns ratio of an SMPS's flyback converter transformer is an important variable. It ... Fairchild Semiconductor
Original
datasheet

22 pages,
441.94 Kb

KA5L0365RN equivalent flyback smps KA5M0365R application note KA1m0565r application note KA1M0680RB equivalent KA5L0165Rv ic ka3842b ka3842b equivalent Fairchild AN4105 KA5M0380R application note KA34063 KA1m0565r equivalent AN4105 power supply switching ka1m0565r AN4105 AN4105 AN4105 TEXT
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Abstract: transformer coil voltage at turn off. This occurs because the current remaining in the inductor during the , recovery diode; reduce the MOSFET's gate operating current at turn on; or, increase the transformer , , and the capacitance of the transformer windings. At turn on, the total equivalent capacitor , once turn on starts. Duty ratio control with a minimum turn on time is implemented through a non , considerations VD The turns ratio of an SMPS's flyback converter transformer is an important variable. It ... Fairchild Semiconductor
Original
datasheet

22 pages,
441.37 Kb

"ideal transformer" switching transformer winding flyback transformer diagram switching power supply transformer Self Oscillating Flyback Converters Fairchild AN4105 flyback smps ic ka3842b KA3842B j s switching transformer SMPS Transformer 12V AN4105 fairchild flyback design AN4105 KA34063 AN4105 isolated feedback flyback converter AN4105 pc817 Ringing Choke Converter AN4105 smps transformer AN4105 smps transformer Design AN4105 pc817 fairchild AN4105 AN4105 AN4105 TEXT
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Abstract: , and the capacitance of the transformer windings. At turn on, the total equivalent capacitor , once turn on starts. Duty ratio control with a minimum turn on time is implemented through a non , considerations VD The turns ratio of an SMPS's flyback converter transformer is an important variable. It , sf o rm e r IP IP The input to output voltage ratio of an ideal transformer is directly , winding. Since n = Vp/Vs, and an ideal transformer has no loss, the current ratio is inversely ... Fairchild Semiconductor
Original
datasheet

22 pages,
440.26 Kb

ka3842b equivalent ic ka3842b with pin ic ka3842b fairchild flyback design KA431 LM431 opto isolator pc817 PC817 Fairchild AN4105 pc817 Ringing Choke Converter 12 pin flyback transformer isolation transformer 6V "voltage regulator handbook" fairchild AN4105 PC817 opto 4 pin AN4105 KA34063 AN4105 KA3842 AN4105 SMPS Transformer 12V AN4105 AN4105 AN4105 SMPS TRANSFORMER TEXT
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Abstract: transformer coil voltage at turn off. This occurs because the current remaining in the inductor during the , MOSFET's gate operating current at turn on; or, increase the transformer leakage inductance. (2) The , transformer windings. At turn on, the total equivalent capacitor discharges through the MOSFET. (3) As shown , turn on starts. Duty ratio control with a minimum turn on time is implemented through a non linear , considerations VD The turns ratio of an SMPS's flyback converter transformer is an important variable. It ... Fairchild Semiconductor
Original
datasheet

22 pages,
384.53 Kb

Self Oscillating Flyback Converters Fairchild AN4105 AN4105 Fairchild Power MOSFET smps tl431 pc817 j s switching transformer 12v electronic transformer RECTIFIER Power MOSFET 50V 10A ideal transformer smps transformer KA34063 ka3842b equivalent "voltage regulator handbook" fairchild sps transistor opto isolator pc817 smps transformer Design switch mode power supply ka3842b ic ka3842b pc817 Ringing Choke Converter TEXT
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Abstract: to reset. This is due to low transformer coil voltage at turn off. This occurs because the current , , the transformer average voltage at turn off is proportional to the output voltage. For a flyback , , and the capacitance of the transformer windings. At turn on, the total equivalent capacitor , once turn on starts. Duty ratio control with a minimum turn on time is implemented through a non , voltage ratio of an ideal transformer is directly proportional to the turns ratio. This is the ratio of ... Fairchild Semiconductor
Original
datasheet

22 pages,
364.89 Kb

12v electronic transformer RECTIFIER KA5H02659 KA1M0680 Fairchild SPS application note KA5M0380R KA1M0680RB KA1m0565r application note KA1m0565r equivalent KA34063 KA3842B KA5L0380R. Application smps transformer Design AN4105 pc817 Ringing Choke Converter AN4105 power supply switching ka1m0565r AN4105 KA5M0365R application note AN4105 KA5M0380R application note AN4105 ic ka3842b AN4105 AN4105 AN4105 TEXT
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Abstract: used. (12) where VREF is fixed to 0.14V internally. Transformer turn ratio, NP : NS is 3.8 : 1 , current through the transformer. Also, (1) where n is the turn ratio of LP and LS. Figure 3 shows the , suggested. So, RAC = 132V / 0.88mA = 150K is recommended. TRANSFORMER TURN RATIO The transformer winding , ratio. The transformer turn ratio must be selected in between the bounds. If the maximum reverse voltage of DOUT (VDOUT(MAX) is 100V. the minimum transformer turn ratio can be calculated with the equation ... Texas Instruments
Original
datasheet

24 pages,
943.64 Kb

TPS92314ADR tps92314 t9231 nonisolated flyback converter T92314 TPS92314 SNVS856A TPS92314A TEXT
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/download/8816576-608893ZC/ncp103x design tool.xls
On Semiconductor 29/08/2007 360 Kb XLS ncp103x design tool.xls
transformer) which will transform the unbalanced 50 ohms to a balanced 5.56 ohms (2 x 2.78 ohms / 9:1 ratio). ST | SD2932 SD2932 RF MOSFET FOR 300W FM AMPLIFIER Application Note SD2932 SD2932 RF MOSFET FOR 300W FM AMPLIFIER AN1229 AN1229 108 MHz and using the new STMicroelectronics RF MOSFET transistor SD2932 SD2932. Table 1: Typical Acheivable AN1229 AN1229 APPLICATION NOTE FOR 300W FM AMPLIFIER SD2932 SD2932 RF MOSFET Serge Juhel AN1229 AN1229 - APPLICATION NOTE 2/5
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/7025.htm
STMicroelectronics 20/10/2000 9.58 Kb HTM 7025.htm
ST | SD2932 SD2932 RF MOSFET FOR 300W FM AMPLIFIER Application Note SD2932 SD2932 RF MOSFET FOR 300W FM AMPLIFIER AN1229 AN1229 range 88 - 108 MHz and using the new STMicroelectronics RF MOSFET transistor SD2932 SD2932. Table 1: Typical 9:1 balun transformer) which will transform the unbalanced 50 ohms to a balanced 5.56 ohms (2 x 2.78 ohms / 9:1 ratio). The first section, a 5" long - 50 ohms coaxial cable and the second section, a
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/7025-v1.htm
STMicroelectronics 27/07/2000 9.33 Kb HTM 7025-v1.htm
profiles, because the pumps lack an inductor or a transformer. However, a charge pump's half-load efficiency at 3.3V is only 75%, which is 10% to 12% lower than the efficiencies that losses cause the charge-pump efficiency to depend strongly on the ratio of input-to-output , noise and EMI become an issue only if the card includes an RF receiver or other sensitive faster rise time, which, in turn, permits the system to access memory faster when returning
/datasheets/files/maxim/0008/view_025.htm
Maxim 04/04/2001 27.24 Kb HTM view_025.htm
regulator. The turns ratio 1:n of the transformer is chosen so that V inlin is above 13V. To re - duce the OVERVOLT COMPARATOR UNDERVOLT COMPARATOR POWER MANAGEMENT & SYSTEM SUPERVISOR 12 VREF 13 SGND 13V + - + SYNCHRONIZATION OSC 15 REG12 REG12 LDO D96IN375 D96IN375 + - REG5 REG5 BLOCK DIAGRAM 1 2 3 5 6 4 7 8 11 12 13 14 15 16 32 30 31 Voltage 4.3 4.53 4.7 V V 12 Reference Voltage 3.35 3.39 3.43 V V IN = 5.5 to 20V I LOAD = 1 to 5mA 3.32 3.39 3.46 V I 12 Source Current at Reference Voltage 5 m A POWER GOOD AND ENABLE FUNCTION V 16 , V 11
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4540-v2.htm
STMicroelectronics 14/06/1999 55.86 Kb HTM 4540-v2.htm
regulator. The turns ratio 1:n of the transformer is chosen so that V inlin is above 13V. To re - duce the OVERVOLT COMPARATOR UNDERVOLT COMPARATOR POWER MANAGEMENT & SYSTEM SUPERVISOR 12 VREF 13 SGND 13V + - + SYNCHRONIZATION OSC 15 REG12 REG12 LDO D96IN375 D96IN375 + - REG5 REG5 BLOCK DIAGRAM 1 2 3 5 6 4 7 8 11 12 13 14 15 16 32 30 31 Voltage 4.3 4.53 4.7 V V 12 Reference Voltage 3.35 3.39 3.43 V V IN = 5.5 to 20V I LOAD = 1 to 5mA 3.32 3.39 3.46 V I 12 Source Current at Reference Voltage 5 m A POWER GOOD AND ENABLE FUNCTION V 16 , V 11
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4540-v1.htm
STMicroelectronics 02/04/1999 55.9 Kb HTM 4540-v1.htm
regulator. The turns ratio 1:n of the transformer is chosen so that V inlin is above 13V. To re - duce the SYSTEM SUPERVISOR 12 VREF 13 SGND 13V + - + - 13V UV Comp 16 11 10 14 9 RUN3 RUN5 PWROK NOSKIP CRST V13IN V13IN DIAGRAM 1 2 3 5 6 4 7 8 11 12 13 14 15 16 32 30 31 29 28 27 26 25 19 18 17 24 23 22 20 21 I5SNS V5SNS V5SW /disable the 5.1V section. A high level (>2.4V) enables this section, a low level ( 5.3V V REG5 = 6V 25 70 mA Switch-Over Threshold Voltage 4.3 4.53 4.7 V V 12 Reference Voltage 3.35 3.39
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4540.htm
STMicroelectronics 20/10/2000 60.35 Kb HTM 4540.htm
21 37 36 34 33 35 FM QUAD- IF2 VCC AM REF AM BPF AM IF2 IN 12 13 14 15 16 PLL VCC FM RF ADJ FM ANT 11 XTAL 12 OSC VCC 13 FM ANT ADJ 14 FM RF ADJ 15 PLL VCC 16 1K5 47n TP21 Evaluation Board Schematic Portable Document Format 5526 12/06/1998 38 Raw Text Format 30 31 32 59 58 57 56 54 55 53 52 51 50 49 43 42 41 39 38 40 48 47 46 44 45 FM AGC OUT FM RF AGC IN FM MIX IN + AM MIX1 IN + AM MIX1 IN - FM MIX IN - XTAL D OSC GND VCO E RF GND VCO B PLL GND SLEEP SDA SCL
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/5526.htm
STMicroelectronics 20/10/2000 60.04 Kb HTM 5526.htm
transformer is chosen so that V inlin is above 13V. To re - duce the turns ratio in order to minimize stray MANAGEMENT & SYSTEM SUPERVISOR 12 VREF 13 SGND 13V + - + - 13V UV Comp 16 11 10 14 9 RUN3 RUN5 LDO D96IN375 D96IN375 + - REG5 REG5 BLOCK DIAGRAM 1 2 3 5 6 4 7 8 11 12 13 14 15 16 32 30 31 29 ) shuts it down 12 VREF Internal +3.39V high accuracy voltage generator. It can source 5mA to external 6V 25 70 mA Switch-Over Threshold Voltage 4.3 4.53 4.7 V V 12 Reference Voltage 3.35 3.39 3.43
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/4540-v3.htm
STMicroelectronics 22/06/2000 57.72 Kb HTM 4540-v3.htm
AM IF2 IN 12 13 14 15 16 PLL VCC FM RF ADJ FM ANT ADJ XTAL G OSC VCC AUDIO OUT PINS CONNECTION TQFP64 TQFP64 1.2 1.6 2.0 mA FM MODE 2.5 3.0 3.5 mA RF V CC RFSupply Voltage 7.5 10 V RF I CC RF Supply Current AM 11 XTAL 12 OSC VCC 13 FM ANT ADJ 14 FM RF ADJ 15 PLL VCC 16 1K5 47n TP21 Evaluation Board Schematic : 12/06/98 Pages: 38 The document is available in the following formats: Portable 41 39 38 40 48 47 46 44 45 FM AGC OUT FM RF AGC IN FM MIX IN + AM MIX1 IN + AM MIX1 IN - FM MIX IN -
/datasheets/files/stmicroelectronics/stonline/books/ascii/docs/5526-v1.htm
STMicroelectronics 02/04/1999 54.41 Kb HTM 5526-v1.htm