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Ola então quero substituir o componente GS72v3 pelo Up1542s q e oque tenho disponível pois quase não acho o GS72V3 na internet alguém me ajuda , ou pelo menos me diz se existe algum equivalente para ele..!!
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Peguei uma placa dessas no escuro Cooler gira 100% nao da video s curto para tentar fazer funcionar ja tinham as tenseos Vcore 0.94V Memoria 1.55V samsung tava sem PLL faltando 1 capacitor e 1 resistor a principio de 10k na linha dos 1.55v da memoria e obtive 1.10V no PLL. Mas a tensao do Pino 1 da bios ta alterada horas mostra 0V horas 1.10V mesma tensao do PLL o correto seria apresentar 3.27V ou algo proximo disso. Se alguem puder ajudar agradeco em suma Cooler gira forte e Pino da Bios tensaoo baixa.
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 doc Esquema Sinus Single 2000-3000 ST
Guilhermebpereira postou um tópico em Gerenciador de arquivos
Esquema Sinus Single 2000-3000 ST Visualizar Arquivo Esquema eletrico nobreak SMS Sinus. Uploader Guilhermebpereira Enviado 01-09-2021 Categoria Fontes & Nobreaks -
 doc APW8723 5V to 12V Single Buck Voltage Mode PWM Controller
Carlos Porto postou um tópico em Gerenciador de arquivos
APW8723 5V to 12V Single Buck Voltage Mode PWM Controller Visualizar Arquivo The APW8723 is a voltage mode, fixed 300kHz switching frequency, synchronous buck converter. The APW8723 allows wide input voltage that is either a single 5V~12V or two supply voltage(s) for various applications. The power-on-reset (POR) circuit monitors the VCC supply voltage to prevent wrong logic controls. A built-in soft-start circuit prevents the output voltages from overshoot as well as limits the input current. An internal 0.8V temperature-compensated reference voltage with high accuracy is designed to meet the requirement of low output voltage applications. The APW8723 provides excellent output voltage regulations against load current variation. APW8723 is built in reference voltage offset function for applications that require adjusting supply voltage. The controller’s over-current protection monitors the output current by using the voltage drop across the RDS(ON) of low-side MOSFET, eliminating the need for a current sensing resistor that features high efficiency and low cost. In addition, the APW8723 also integrates excellent protection functions, The over-voltage protection (OVP) , undervoltage protection (UVP) and over-temperature protection (OTP). OVP circuit which monitors the FB voltage to prevent the PWM output from over voltage, and UVP circuit which monitors the FB voltage to prevent the PWM output from under voltage or short circuit. OTP circuit which monitors the junction temperature to prevent over-heating conditions. The APW8723 is available in TDFN3x3-10 package. Uploader Carlos Porto Enviado 08-06-2021 Categoria Datasheets -
 doc APW8723 5V to 12V Single Buck Voltage Mode PWM Controller
Carlos Porto postou um arquivo em Datasheets
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The APW8723 is a voltage mode, fixed 300kHz switching frequency, synchronous buck converter. The APW8723 allows wide input voltage that is either a single 5V~12V or two supply voltage(s) for various applications. The power-on-reset (POR) circuit monitors the VCC supply voltage to prevent wrong logic controls. A built-in soft-start circuit prevents the output voltages from overshoot as well as limits the input current. An internal 0.8V temperature-compensated reference voltage with high accuracy is designed to meet the requirement of low output voltage applications. The APW8723 provides excellent output voltage regulations against load current variation. APW8723 is built in reference voltage offset function for applications that require adjusting supply voltage. The controller’s over-current protection monitors the output current by using the voltage drop across the RDS(ON) of low-side MOSFET, eliminating the need for a current sensing resistor that features high efficiency and low cost. In addition, the APW8723 also integrates excellent protection functions, The over-voltage protection (OVP) , undervoltage protection (UVP) and over-temperature protection (OTP). OVP circuit which monitors the FB voltage to prevent the PWM output from over voltage, and UVP circuit which monitors the FB voltage to prevent the PWM output from under voltage or short circuit. OTP circuit which monitors the junction temperature to prevent over-heating conditions. The APW8723 is available in TDFN3x3-10 package. -
 dúvida Murrelektronik-eco-power 5.0-100-24024 single phase[85153]Não liga CI de PWM estourado
Thulio Lima postou um tópico em Fontes & No-Breakes
Pessoal estou com essa fonte para tentar o reparo, mas não sei qual a referencia do ci de pwm pois o mesmo estava estourado, vou anexar algumas fotos da fonte o mosfet (FQA11N90C-Fairchild)que se encontrava em curto e gostaria de saber por qual posso substitui-lo já que na minha cidade peças de eletrônica é difícil de encontrar. Desde já agradeço qualquer ajuda. -
 doc MDV1528 Single N-channel Trench MOSFET 30V, 16A, 18.8mOhm
Carlos Porto postou um tópico em Gerenciador de arquivos
MDV1528 Single N-channel Trench MOSFET 30V, 16A, 18.8mOhm Visualizar Arquivo The MDV1528 uses advanced MagnaChip’s MOSFET Technology, which provides high performance in on-state resistance, fast switching performance and excellent quality. MDV1528 is suitable for DC/DC converter and general purpose applications. FEATURES: VDS = 30V ID = 16A @VGS = 10V RDS(ON) < 18.8mΩ @VGS = 10V < 27.8mΩ @VGS = 4.5V 100% UIL Tested 100% Rg Tested Uploader Carlos Porto Enviado 09/02/2023 Categoria Datasheets -
 doc MDV1528 Single N-channel Trench MOSFET 30V, 16A, 18.8mOhm
Carlos Porto postou um arquivo em Datasheets
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The MDV1528 uses advanced MagnaChip’s MOSFET Technology, which provides high performance in on-state resistance, fast switching performance and excellent quality. MDV1528 is suitable for DC/DC converter and general purpose applications. FEATURES: VDS = 30V ID = 16A @VGS = 10V RDS(ON) < 18.8mΩ @VGS = 10V < 27.8mΩ @VGS = 4.5V 100% UIL Tested 100% Rg Tested
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