• TL494: Output PWM duty cycle adjustment

  

  Colin Chen

  TI Thinks Resolved

  Part Number: TL494 Other Parts Discussed in Thread: TL594 Tool/software: Dear Experts, We want to use TL494 or TL594 as a constant current source and would like to know if the output PWM duty cycle of these two chips can be adjusted to over 95%, and…

  • 2 days ago
  • Power management
  • Power management forum

• RE: TL494: Can TL494 control the voltage between battery output + and - ？

  

  Hong Huang

  Hi, I already replied to you as the circuit cannot work since Q82 and Q81 either on or off, then R26 sensed voltage is either 0 or high, so voltage R26 is step up and down, TL494 cannot work with such step up and down voltage as feedback.

  • 2 months ago
  • Power management
  • Power management forum

• TL494: I want to check in the LTSpice simulation of TL494

  

  Masakazu Ushijima

  TI Thinks Resolved

  Part Number: TL494 Tool/software: Hello everyone! After updating to LTSpice24, I encountered an error with the TL494 simulation. I made the following changes from the model available online: Line 6: V§DT N007 DTC 0.12 was corrected to V1 N007 DTC…

  • 3 months ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum
Answered

• TL494: Oscillations at the PWM output

  

  Oguzhan Vural

  Resolved

  Part Number: TL494 Tool/software: Hi, I am designing a PWM generator that its frequency and duty cycle are adjustable. I am trying to produce low frequency PWM signals as low as 10Hz and the lowest duty cycle as possible. In my application I observe…

  • Resolved

  • 1 month ago
  • Power management
  • Power management forum

• TL494: TL494 CC Mode

  

  MS

  TI Thinks Resolved

  Part Number: TL494 Other Parts Discussed in Thread: CSD19538Q3A , TPS2816 , TPS2828 , TPS2818 Tool/software: Hello, I have a VDD = 46V which supplies a system (load). This load tries to draw more than 10A, and I want to limit the current. For this, I wanted…

  • 4 months ago
  • Power management
  • Power management forum

• RE: TL494: Battery powered 2A constant current source

  

  Hong Huang

  Hi, Then why TPS61232DRC cannot be used in your design?

  • 1 month ago
  • Power management
  • Power management forum
Answered

• TL494: Transformer

  

  Lee Kyungho

  Resolved

  Part Number: TL494 Tool/software: Hi, TI team, I'm gonna design a circuit to convert power like follows. -. Input : 12V DC, -. Output : Bipolar +65V, -65V / 1kW The application is for supplying Power to Audio Amplifier . I appreciate it if you…

  • Resolved

  • 3 months ago
  • Power management
  • Power management forum

• TL494: TL494 tests the current magnitude wave problem

  

  ken chen

  TI Thinks Resolved

  Part Number: TL494 Tool/software: Hi TI Team， The customer encountered the following problems when using TL494 to design the laser power supply, please help to see if the adjustment loop parameters can be improved? When the AC input is 220V, the current…

  • 5 months ago
  • Power management
  • Power management forum

• TL494: Circuit design TL494

  

  durga prasad

  TI Thinks Resolved

  Part Number: TL494 Other Parts Discussed in Thread: LM25037 , LM5030 Tool/software: Hi, i want to design 27V/1A isolated DC to DC converter using TL494 can you suggest a circuit diagram

  • 6 months ago
  • Power management
  • Power management forum

• TL494: DC PSU 12V ATX own project

  

  Piotr Kwasniewski

  TI Thinks Resolved

  Part Number: TL494 Other Parts Discussed in Thread: LM393 , UCC2894 , UCC2897A Tool/software: Hi, I need to design a 12V 200W ATX power supply for my own needs, based on various diagrams I see that the power goes to the TL494 module and then to the LM393…

  • 4 months ago
  • Power management
  • Power management forum

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