• UC3842: external IC over voltage protection with uc3842

  

  Minseong LEE

  TI Thinks Resolved

  Part Number: UC3842 Tool/software: Objective: Implementing External Over Voltage Protection (OVP) for UC3842 According to the UC3842 datasheet, the shutdown technique section describes how to implement external over voltage protection using an external…

  • 4 months ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

• UC3842: UC3842 based 25KV output power supply

  

  Supriya Khapare

  TI Thinks Resolved

  Part Number: UC3842 Tool/software: Hello, Can i Use UC3842 for 240VAC I/P and variable 25KV/100~200W output Power supply.

  • 7 months ago
  • Power management
  • Power management forum
Answered

• UC3842: UC3842

  

  chandrasekaran mani

  Resolved

  Part Number: UC3842 Tool/software: Dear TI community We want to design a power converter of 600W. My input and output specification are 230VAC and 60VDC at 10A. please suggest the topology and control ic. Is there any possible for using the flyback…

  • Resolved

  • over 1 year ago
  • Power management
  • Power management forum

• UC3842: start-up circuit design

  

  kyung wook kwon

  TI Thinks Resolved

  Part Number: UC3842 Tool/software: when designing a flyback converter using the UC3842 IC with an input range of 200V to 1000V and a 24V output would it be appropriate to use a 280kohm start-up resistor? according to the datasheet, the maximum start…

  • 28 days ago
  • Power management
  • Power management forum

• UC3842: UC3842 DC-DC high input voltage y cap value

  

  wonjune Lee

  TI Thinks Resolved

  Part Number: UC3842 Tool/software: I am designing a topology with a high input DC voltage of 800V. In the case of a ceramic capacitor used to eliminate common mode noise between the ground of the primary side and the secondary…

  • over 1 year ago
  • Power management
  • Power management forum

• UC3842: Questions about SMPS design

  

  ?? ?

  TI Thinks Resolved

  Part Number: UC3842 Other Parts Discussed in Thread: UCC28C56EVM-066 , UCC28C56H Tool/software: Hi, I’m working on designing an SMPS using the UC3842 IC. My topology is a conventional flyback converter without any special techniques. However, my input…

  • 4 months ago
  • Power management
  • Power management forum

• UC3842: Vcc of UC3842 not steady

  

  Sachin Devassy

  TI Thinks Resolved

  Part Number: UC3842 Dear All, I am making a flyback converter using UC3842 (Output 12V, 12W, Input 100V-220V). The desired voltage is 12V however, the initial output when the feedback resistor was 9.5k was 21 V . When the Feedback resistor Rf was changed…

  • over 1 year ago
  • Power management
  • Power management forum

• UC3842: Recommendation for buck converter using external PNP transistor

  

  Conor

  TI Thinks Resolved

  Part Number: UC3842 Other Parts Discussed in Thread: LM5148 , LM25190 , LM25149 , TL494 , Tool/software: Hi, We are currently supporting a customer who is designing a non-isolated buck converter with the following conditions: ・Input voltage: 18V…

  • 4 months ago
  • Power management
  • Power management forum

• UC3842: Starting issue

  

  Venkatesh B

  TI Thinks Resolved

  Part Number: UC3842 Tool/software: Hi Ti Team, I am using UC3842 IC for 250W Flyback converter for charging application when i turned ON giving input from Variac(0 to 230V )AC converter works fine,but when i give direct 230V AC converter Fails,shunt…

  • 11 months ago
  • Power management
  • Power management forum

• UC3842: uc3842 simulation required

  

  Ganesamurthy Sattanathan

  TI Thinks Resolved

  Part Number: UC3842 Hi Ii want to simulate the Forward Converter using UC3842 in Ti power Stage Designer tool. Whether the Ti Power Stage Designer tool is free.. Thanks Ganesamurthy

  • over 2 years ago
  • Power management
  • Power management forum

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