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    500 WATT MOSFET POWER AMPLIFIER CIRCUIT DIAGRAM Search Results

    500 WATT MOSFET POWER AMPLIFIER CIRCUIT DIAGRAM Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    D1U74T-W-1600-12-HB4AC Murata Manufacturing Co Ltd AC/DC 1600W, Titanium Efficiency, 74 MM , 12V, 12VSB, Inlet C20, Airflow Back to Front, RoHs Visit Murata Manufacturing Co Ltd
    D1U54T-M-2500-12-HB4C Murata Manufacturing Co Ltd 2.5KW 54MM AC/DC 12V WITH 12VDC STBY BACK TO FRONT AIR Visit Murata Manufacturing Co Ltd
    MGN1S1208MC-R7 Murata Manufacturing Co Ltd DC-DC 1W SM 12-8V GAN Visit Murata Manufacturing Co Ltd
    MGN1D120603MC-R7 Murata Manufacturing Co Ltd DC-DC 1W SM 12-6/-3V GAN Visit Murata Manufacturing Co Ltd
    MGN1S1212MC-R7 Murata Manufacturing Co Ltd DC-DC 1W SM 12-12V GAN Visit Murata Manufacturing Co Ltd

    500 WATT MOSFET POWER AMPLIFIER CIRCUIT DIAGRAM Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    1000w power amplifier circuit diagram

    Abstract: 800w power amplifier circuit diagram 1200w power amplifier circuit diagram amplifier circuit diagram class D 1000w 500 watt mosfet power amplifier circuit diagram 27.12MHz power amplifier APT9701 1000 watt ferrite transformer ar164 hf 800w power Amplifier diagram
    Text: APPLICATION NOTE APT9701 Low Cost 1000 Watt 300 Volt RF Power Amplifier for 27.12MHz 1 Low Cost 1000 Watt 300 Volt RF Power Amplifier for 27.12MHz Richard Frey, P.E., RF Applications Engineering, Advanced Power Technology Inc, Bend, OR ABSTRACT directly to a single stage PFC regulated power supply


    Original     		APT9701 12MHz O-247 300VDC AN749, DL110, 1000w power amplifier circuit diagram 800w power amplifier circuit diagram 1200w power amplifier circuit diagram amplifier circuit diagram class D 1000w 500 watt mosfet power amplifier circuit diagram 27.12MHz power amplifier APT9701 1000 watt ferrite transformer ar164 hf 800w power Amplifier diagram PDF

    smd diode code R05

    Abstract: rms 600 watt mosfet schematic 800 WATT MOSFET AMPLI DIAGRAM smd R05 Amp. mosfet 1000 watt 500 watt mosfet power amplifier circuit diagram smd R07 smd r06 300 watt mosfet amplifier circuit diagram of mosfet based power supply
    Text: UCC2882 /-1 UCC3882 /-1 Average Current Mode Synchronous Controller With 5-Bit DAC FEATURES DESCRIPTION • Combined DAC/Voltage Monitor and PWM with Synchronous Rectification Functions The UCC3882 combines high precision reference and voltage monitoring circuitry with average current mode PWM synchronous rectification controller circuitry to power high-end microprocessors with a minimum of external components. The


    Original     		UCC2882 UCC3882 05VDC 100mV 50mV/A smd diode code R05 rms 600 watt mosfet schematic 800 WATT MOSFET AMPLI DIAGRAM smd R05 Amp. mosfet 1000 watt 500 watt mosfet power amplifier circuit diagram smd R07 smd r06 300 watt mosfet amplifier circuit diagram of mosfet based power supply PDF

    sanyo 1500uF 16V capacitor

    Abstract: dil28 smd DIODE C06 SOIC-28 UCC2882 UCC3882 SMD DIL OSCILLATOR smd R05 Amp. mosfet 500 watt smd r06
    Text: UCC2882/-1 UCC3882/-1 Average Current Mode Synchronous Controller With 5-Bit DAC FEATURES DESCRIPTION • Combined DAC/Voltage Monitor and PWM with Synchronous Rectification Functions The UCC3882 combines high precision reference and voltage monitoring circuitry with average current mode PWM synchronous rectification controller circuitry to power high-end microprocessors with a minimum of external components. The UCC3882


    Original     		UCC2882/-1 UCC3882/-1 UCC3882 UCC3882 05VDC 100mV sanyo 1500uF 16V capacitor dil28 smd DIODE C06 SOIC-28 UCC2882 SMD DIL OSCILLATOR smd R05 Amp. mosfet 500 watt smd r06 PDF

    500w power amplifier circuit diagram

    Abstract: HEXFET Power MOSFET designer manual PCIM 177 APT9302 Transistor C538 200w power amplifier PCB layout 500 watt mosfet power amplifier circuit diagram 400w power amplifier PCB layout 500w hf power amplifier circuit diagram F624-19Q1
    Text: APPLICATION NOTE APT9501 By: Kenneth Dierberger Bobby McDonald Lee B. Max A High-Efficiency 400 Watt 13.56 MHz RF Power Amplifier Presented at RF EXPO WEST 1995 1 A High-Efficiency 400 Watt 13.56 MHz RF Power Amplifier Kenneth Dierberger Applications Engineering Manager


    Original     		APT9501 400Watt, 56MHz 100VDC F-33700 500w power amplifier circuit diagram HEXFET Power MOSFET designer manual PCIM 177 APT9302 Transistor C538 200w power amplifier PCB layout 500 watt mosfet power amplifier circuit diagram 400w power amplifier PCB layout 500w hf power amplifier circuit diagram F624-19Q1 PDF

    P4932

    Abstract: 12v 60W subwoofer CIRCUIT DIAGRAM 2.1 subwoofer diagram 100w amp P4932-ND 12v subwoofer car amp circuits 200 Watt subwoofer Circuit 3.1 50w 12v subwoofer amp circuits 500 watt subwoofer circuit diagram EF1105-ND 12v subwoofer car amp circuits pcb
    Text: LM4651 & LM4652 Overture Audio Power Amplifier 170W Class D Audio Power Amplifier Solution General Description Key Specifications The IC combination of the LM4651 driver and the LM4652 power MOSFET provides a high efficiency, Class D subwoofer amplifier solution.


    Original     		LM4651 LM4652 LM4651 LM4651also O-220 P4932 12v 60W subwoofer CIRCUIT DIAGRAM 2.1 subwoofer diagram 100w amp P4932-ND 12v subwoofer car amp circuits 200 Watt subwoofer Circuit 3.1 50w 12v subwoofer amp circuits 500 watt subwoofer circuit diagram EF1105-ND 12v subwoofer car amp circuits pcb PDF

    12v subwoofer car amp circuits pcb

    Abstract: 12v subwoofer car amp circuits 12v 60W subwoofer CIRCUIT DIAGRAM 500 watt subwoofer circuit diagram car subwoofer amplifier schematic circuit diagram 12v 50 watt subwoofer circuit diagram subwoofer preamplifier circuit 12V supply subwoofer car amp circuits pcb 800 watt subwoofer circuit diagram 500 watt audio subwoofer
    Text: LM4651 & LM4652 Overture Audio Power Amplifier 170W Class D Audio Power Amplifier Solution General Description Key Specifications The IC combination of the LM4651 driver and the LM4652 power MOSFET provides a high efficiency, Class D subwoofer amplifier solution.


    Original     		LM4651 LM4652 LM4651 LM4652 LM4651also O-220 12v subwoofer car amp circuits pcb 12v subwoofer car amp circuits 12v 60W subwoofer CIRCUIT DIAGRAM 500 watt subwoofer circuit diagram car subwoofer amplifier schematic circuit diagram 12v 50 watt subwoofer circuit diagram subwoofer preamplifier circuit 12V supply subwoofer car amp circuits pcb 800 watt subwoofer circuit diagram 500 watt audio subwoofer PDF

    car subwoofer amplifier schematic circuit diagram

    Abstract: 12v subwoofer car amp circuits pcb 12v 50 watt subwoofer circuit diagram 12v subwoofer car amp circuits 12v 60W subwoofer CIRCUIT DIAGRAM 500 watt subwoofer circuit diagram mosfet 800 watt subwoofer circuit diagram 100 watt subwoofer circuit diagram CAR SUBWOOFER 100W AMP subwoofer schematic circuit for car audio
    Text: OBSOLETE July 9, 2009 170W Class D Audio Power Amplifier Solution General Description Key Specifications The IC combination of the LM4651 driver and the LM4652 power MOSFET provides a high efficiency, Class D subwoofer amplifier solution. The LM4651 is a fully integrated conventional pulse width


    Original     		LM4651 LM4652 LM4651also LM4652 O-220 car subwoofer amplifier schematic circuit diagram 12v subwoofer car amp circuits pcb 12v 50 watt subwoofer circuit diagram 12v subwoofer car amp circuits 12v 60W subwoofer CIRCUIT DIAGRAM 500 watt subwoofer circuit diagram mosfet 800 watt subwoofer circuit diagram 100 watt subwoofer circuit diagram CAR SUBWOOFER 100W AMP subwoofer schematic circuit for car audio PDF

    1500 watt smps schematic

    Abstract: DIFFERENCE BETWEEN SMPS 600 WATT AND 400 WATT schematic SMPS 1200 watt resistor 0603 100 3000 WATT smps 600 watt smps schematic Sanyo
    Text: UCC2882/-1 UCC3882/-1 Average Current Mode Synchronous Controller With 5-Bit DAC FEATURES DESCRIPTION • Combined DAC/Voltage Monitor and PWM with Synchronous Rectification Functions The UCC3882 combines high precision reference and voltage monitoring circuitry with average current mode PWM synchronous rectification controller circuitry to power high-end microprocessors with a minimum of external components. The UCC3882


    Original     		UCC2882/-1 UCC3882/-1 700kHz UCC3882 UCC3882DWTR-1 UCC3882PW-1 SSYA008 SLVA085 SZZA017A 1500 watt smps schematic DIFFERENCE BETWEEN SMPS 600 WATT AND 400 WATT schematic SMPS 1200 watt resistor 0603 100 3000 WATT smps 600 watt smps schematic Sanyo PDF

    12v audio amp. mosfet 50 watt

    Abstract: 400 watt audio amplifier MOSFET 500 watt mosfet audio amplifier circuit diagram 3882 023 ucc3882dw-1 400 watt audio amplifier MOSFET schematic circuit 3882 power 800 WATT MOSFET AMPLI DIAGRAM smd diode code R05 SOIC-28
    Text: UCC2882/-1 UCC3882/-1 Average Current Mode Synchronous Controller With 5-Bit DAC FEATURES DESCRIPTION • Combined DAC/Voltage Monitor and PWM with Synchronous Rectification Functions The UCC3882 combines high precision reference and voltage monitoring circuitry with average current mode PWM synchronous rectification controller circuitry to power high-end microprocessors with a minimum of external components. The UCC3882


    Original     		UCC2882/-1 UCC3882/-1 UCC3882 UCC3882 05VDC 100mV 12v audio amp. mosfet 50 watt 400 watt audio amplifier MOSFET 500 watt mosfet audio amplifier circuit diagram 3882 023 ucc3882dw-1 400 watt audio amplifier MOSFET schematic circuit 3882 power 800 WATT MOSFET AMPLI DIAGRAM smd diode code R05 SOIC-28 PDF

    UCC3830-4

    Abstract: UCC3830-5 UCC3830-6 SOIC-20 UCC3830 UDG-96188-2 Dale Resistor wsr-2 DALE WSR-2
    Text: UCC3830-4/-5/-6 5-Bit Microprocessor Power Supply Controller FEATURES DESCRIPTION • 5-Bit Digital-to-Analog Converter DAC The UCC3830-4/-5/-6 is a fully integrated single chip solution ideal for powering high performance microprocessors. The chip includes an average current


    Original     		UCC3830-4/-5/-6 UCC3830-4/-5/-6 UCC3830-x UCC3830-x UCC3830-4 UCC3830-5 UCC3830-6 SOIC-20 UCC3830 UDG-96188-2 Dale Resistor wsr-2 DALE WSR-2 PDF

    car subwoofer amplifier schematic circuit diagram

    Abstract: mosfet 800 watt subwoofer circuit diagram 500 watt subwoofer circuit diagram 800 watt subwoofer circuit diagram 50 watt car subwoofer circuit diagram LM4652 subwoofer 50 watt subwoofer circuit diagram 100 watt subwoofer circuit diagram 200 Watt subwoofer Circuit 4000 watts subwoofer circuit diagram
    Text: LM4651 & LM4652 Overture Audio Power Amplifier 170W Class D Audio Power Amplifier Solution General Description Key Specifications The IC combination of the LM4651 driver and the LM4652 power MOSFET provides a high efficiency, Class D subwoofer amplifier solution.


    Original     		LM4651 LM4652 LM4651 LM4652 LM4651also O-220 car subwoofer amplifier schematic circuit diagram mosfet 800 watt subwoofer circuit diagram 500 watt subwoofer circuit diagram 800 watt subwoofer circuit diagram 50 watt car subwoofer circuit diagram LM4652 subwoofer 50 watt subwoofer circuit diagram 100 watt subwoofer circuit diagram 200 Watt subwoofer Circuit 4000 watts subwoofer circuit diagram PDF

    400 watt audio amplifier MOSFET

    Abstract: rms 600 watt mosfet schematic 400 watt audio amplifier MOSFET schematic circuit
    Text: UCC3882/-1 www.ti.com SLUS294A – MARCH 1999 – REVISED OCTOBER 2005 AVERAGE CURRENT MODE SYNCHRONOUS CONTROLLER WITH 5-BIT DAC FEATURES • • • • • • • • • • DESCRIPTION Combined DAC/Voltage Monitor and PWM With Synchronous Rectification Functions


    Original     		UCC3882/-1 SLUS294A UCC3882 400 watt audio amplifier MOSFET rms 600 watt mosfet schematic 400 watt audio amplifier MOSFET schematic circuit PDF

    400 watt audio amplifier MOSFET

    Abstract: audio Amp. mosfet 1000 watt DIODE SMD b14 smd diode b13 1500 watt audio amplifier circuit diagram 500 watt mosfet audio amplifier circuit diagram 600 Watt Mosfet Power Amplifier 1000 watt mosfet audio amplifier 10.8v drill smd r06
    Text: UCC3882/-1 www.ti.com SLUS294A – MARCH 1999 – REVISED OCTOBER 2005 AVERAGE CURRENT MODE SYNCHRONOUS CONTROLLER WITH 5-BIT DAC FEATURES • • • • • • • • • • DESCRIPTION Combined DAC/Voltage Monitor and PWM With Synchronous Rectification Functions


    Original     		UCC3882/-1 SLUS294A UCC3882 400 watt audio amplifier MOSFET audio Amp. mosfet 1000 watt DIODE SMD b14 smd diode b13 1500 watt audio amplifier circuit diagram 500 watt mosfet audio amplifier circuit diagram 600 Watt Mosfet Power Amplifier 1000 watt mosfet audio amplifier 10.8v drill smd r06 PDF

    12v subwoofer car amp circuits pcb

    Abstract: 500 watt subwoofer circuit diagram car subwoofer amplifier schematic circuit diagram 500 watt audio subwoofer 800 watt subwoofer circuit diagram 100w car amplifier subwoofer 2.1 subwoofer diagram 100w amp 50 watt subwoofer circuit diagram subwoofer amp circuit 300 watts 12v 60W subwoofer CIRCUIT DIAGRAM
    Text: LM4651,LM4652 LM4651 & LM4652 Overture Audio Power Amplifier 170W Class D Audio Power Amplifier Solution Literature Number: SNOS507G OBSOLETE July 9, 2009 170W Class D Audio Power Amplifier Solution General Description Key Specifications The IC combination of the LM4651 driver and the LM4652


    Original     		LM4651 LM4652 LM4651 LM4652 SNOS507G 12v subwoofer car amp circuits pcb 500 watt subwoofer circuit diagram car subwoofer amplifier schematic circuit diagram 500 watt audio subwoofer 800 watt subwoofer circuit diagram 100w car amplifier subwoofer 2.1 subwoofer diagram 100w amp 50 watt subwoofer circuit diagram subwoofer amp circuit 300 watts 12v 60W subwoofer CIRCUIT DIAGRAM PDF

    500 watt subwoofer circuit diagram

    Abstract: 50 watt subwoofer circuit diagram mosfet 800 watt subwoofer circuit diagram 125khz RFID schematic 12v subwoofer car amp circuits pcb 100 watt subwoofer for home circuit diagram LM4651 12v 60W subwoofer CIRCUIT DIAGRAM 12v 100W subwoofer CIRCUIT DIAGRAM SNOS507H
    Text: OBSOLETE LM4651, LM4652 www.ti.com SNOS507H – MAY 2000 – REVISED APRIL 2013 LM4651 & LM4652 Overture Audio Power Amplifier 170W Class D Audio Power Amplifier Solution Check for Samples: LM4651, LM4652 FEATURES DESCRIPTION • • • • • • •


    Original     		LM4651, LM4652 SNOS507H LM4651 LM4652 50kHz 200kHz LM4651 500 watt subwoofer circuit diagram 50 watt subwoofer circuit diagram mosfet 800 watt subwoofer circuit diagram 125khz RFID schematic 12v subwoofer car amp circuits pcb 100 watt subwoofer for home circuit diagram 12v 60W subwoofer CIRCUIT DIAGRAM 12v 100W subwoofer CIRCUIT DIAGRAM SNOS507H PDF

    100 watt subwoofer circuit diagram

    Abstract: 12v 500 watt car audio amplifier CIRCUIT 500 watt subwoofer circuit diagram 12v subwoofer car amp circuits pcb 100w car subwoofer amp circuit diagram 800 watt subwoofer circuit diagram mosfet 800 watt subwoofer circuit diagram 100 watt subwoofer circuit diagram for car 12v 50 watt subwoofer circuit diagram LM4652 subwoofer
    Text: OBSOLETE LM4651, LM4652 www.ti.com SNOS507G – MAY 2004 – REVISED JULY 2009 LM4651 & LM4652 Overture Audio Power Amplifier 170W Class D Audio Power Amplifier Solution Check for Samples: LM4651, LM4652 FEATURES 1 • • • • • • • 23 Conventional pulse width modulation.


    Original     		LM4651, LM4652 SNOS507G LM4651 LM4652 50kHz 200kHz 100 watt subwoofer circuit diagram 12v 500 watt car audio amplifier CIRCUIT 500 watt subwoofer circuit diagram 12v subwoofer car amp circuits pcb 100w car subwoofer amp circuit diagram 800 watt subwoofer circuit diagram mosfet 800 watt subwoofer circuit diagram 100 watt subwoofer circuit diagram for car 12v 50 watt subwoofer circuit diagram LM4652 subwoofer PDF

    LM49830

    Abstract: 150w audio amplifier circuit diagram class AB 2sk1058 2SJ162 LME49830 12v 300W AUDIO AMPLIFIER CIRCUIT DIAGRAM lm4702 OUTPUT STAGE INFORMATION AN-1850 transistor 2sj162 450w power supply schematic diagram AN1645
    Text: National Semiconductor Application Note 1850 Troy Huebner John DeCelles July 1, 2008 Introduction validate the solution’s sonic performance in the desired test environment. The solution presented has undergone listening evaluations in a dedicated sound room for verification of sonic


    Original     		LME49830 EF125WT1 AN-1850 LM49830 150w audio amplifier circuit diagram class AB 2sk1058 2SJ162 12v 300W AUDIO AMPLIFIER CIRCUIT DIAGRAM lm4702 OUTPUT STAGE INFORMATION AN-1850 transistor 2sj162 450w power supply schematic diagram AN1645 PDF

    LM49830

    Abstract: Audio Power Amplifier MOSFET TOSHIBA high power fet audio amplifier schematic 300w power amplifier circuit diagram 150w audio amplifier circuit diagram class AB lm4702 OUTPUT STAGE INFORMATION lme49830 2sk1058 2SJ162 12v 300W AUDIO AMPLIFIER CIRCUIT DIAGRAM 300w mosfet audio amplifier circuit diagram
    Text: National Semiconductor Application Note 1850 Troy Huebner John DeCelles December 2, 2008 Introduction validate the solution’s sonic performance in the desired test environment. The solution presented has undergone listening evaluations in a dedicated sound room for verification of sonic


    Original     		LME49830 EF125WT1 AN-1850 LM49830 Audio Power Amplifier MOSFET TOSHIBA high power fet audio amplifier schematic 300w power amplifier circuit diagram 150w audio amplifier circuit diagram class AB lm4702 OUTPUT STAGE INFORMATION 2sk1058 2SJ162 12v 300W AUDIO AMPLIFIER CIRCUIT DIAGRAM 300w mosfet audio amplifier circuit diagram PDF

    1000 watt mosfet power amplifier

    Abstract: No abstract text available
    Text: Preliminary SLD1000 Product Description The SLD1000 is a 3.5 Watt high performance LDMOS transistor die, designed for operation to 2700MHz. It is an excellent solution for applications requiring high linearity and efficiency. The SLD1000 is typically used as a


    Original     		SLD1000 2700MHz. SLD1000 EDS-104291 AN-039 1000 watt mosfet power amplifier PDF

    LME49830

    Abstract: an1850 150W TRANSISTOR AUDIO AMPLIFIER LM49830 AN-1850 SNAA058B
    Text: Application Report SNAA058B – July 2008 – Revised May 2013 AN-1850 LME49830TB Ultra-High Fidelity High Power Amplifier Reference Design .


    Original     		SNAA058B AN-1850 LME49830TB LME49830 an1850 150W TRANSISTOR AUDIO AMPLIFIER LM49830 SNAA058B PDF

    1000 watt mosfet audio amplifier

    Abstract: b14 smd diode 400 watt audio amplifier MOSFET B15 diode smd 1500 watt audio amplifier circuit diagram & PCB layout smd diode code R05 DIODE SMD b14 96216 smd diode b13
    Text: UCC3882/-1 www.ti.com SLUS294A – MARCH 1999 – REVISED OCTOBER 2005 AVERAGE CURRENT MODE SYNCHRONOUS CONTROLLER WITH 5-BIT DAC FEATURES • • • • • • • • • • DESCRIPTION Combined DAC/Voltage Monitor and PWM With Synchronous Rectification Functions


    Original     		UCC3882/-1 SLUS294A UCC3882 1000 watt mosfet audio amplifier b14 smd diode 400 watt audio amplifier MOSFET B15 diode smd 1500 watt audio amplifier circuit diagram & PCB layout smd diode code R05 DIODE SMD b14 96216 smd diode b13 PDF

    500 watt mosfet audio amplifier circuit diagram

    Abstract: audio amp. mosfet 100 watt b14 smd diode 96216 6MV1500GX IRL3103 IRL3103D1 UCC3882 400 watt audio amplifier MOSFET 400 watt audio amplifier MOSFET schematic circuit
    Text: UCC3882/-1 www.ti.com SLUS294A – MARCH 1999 – REVISED OCTOBER 2005 AVERAGE CURRENT MODE SYNCHRONOUS CONTROLLER WITH 5-BIT DAC FEATURES • • • • • • • • • • DESCRIPTION Combined DAC/Voltage Monitor and PWM With Synchronous Rectification Functions


    Original     		UCC3882/-1 SLUS294A UCC3882 500 watt mosfet audio amplifier circuit diagram audio amp. mosfet 100 watt b14 smd diode 96216 6MV1500GX IRL3103 IRL3103D1 400 watt audio amplifier MOSFET 400 watt audio amplifier MOSFET schematic circuit PDF

    logic smd 3385

    Abstract: No abstract text available
    Text: y ^ U N IT R O O E UCC2882/-1 UCC3882/-1 Average Current Mode Synchronous Controller With 5-Bit DAC FEATURES DESCRIPTION • Combined DAC/Voltage Monitor and PWM with Synchronous Rectification Functions The UCC3882 combines high precision reference and voltage


    OCR Scan     		700kHz UCC2882/-1 UCC3882/-1 UCC3882 SYU80L UCCJ882 logic smd 3385 PDF

    IC CS 3758 GP

    Abstract: CS 3758 GP MOTOROLA smd SCR vrm chip fault finding SCR 30A 400V ek c06 Thyristor catalog three phase SCR gate drive circuit SCR firing circuit diode S68a
    Text: UNITRODE CORPORATION APPLICATION NOTE U-157 FUELING THE MEGAPROCESSOR - A DC/DC CONVERTER DESIGN REVIEW FEATURING THE UC3886 AND UC3910 by Larry Spaziani Applications Engineer ABSTRACT This application note provides a detailed account o f design tradeoffs and procedures for the development


    OCR Scan     		U-157 UC3886 UC3910 UC3910 U-156, DL137/D U-158, IC CS 3758 GP CS 3758 GP MOTOROLA smd SCR vrm chip fault finding SCR 30A 400V ek c06 Thyristor catalog three phase SCR gate drive circuit SCR firing circuit diode S68a PDF