• UC3525A: pulling pin 9 comp control to ground to adjust PWM

  

  brett kelly

  TI Thinks Resolved

  Part Number: UC3525A Tool/software: H1 I have seen a design that sets the INV and NON INV pins to fixed level, INV to GND and NON-INV to VREF. Then the COMP pin 9 is Pulled to Vref via resistor. Pin 9 is then adjusted to gnd to adjust PWM. My question…

  • 1 month ago
  • Power management
  • Power management forum

• UC3525A: External error amplifier

  

  Arrshith rg

  TI Thinks Resolved

  Part Number: UC3525A Tool/software: Hi, I want to use and external error amplifier based on Op-amp in order to achive Type -3 compensation and variable reference volatge to get variable output voltage from a buck converter. Is there any way to disable…

  • 2 months ago
  • Power management
  • Power management forum

• UC3525A: Problems with the Output of the UC3525A

  

  switch

  TI Thinks Resolved

  Part Number: UC3525A Hi ti team， How can the output of the UC3525ADWTR be adjusted to stay within the range of ±50V? The attached figure is the current circuit diagram. 0511.UC3525A.PDF

  • 6 months ago
  • Power management
  • Power management forum

• UC3525A: Looking for AP note SLUP114 on current sense transformers

  

  Dave Cook

  TI Thinks Resolved

  Part Number: UC3525A Tool/software: Several threads in the forum similar to this e2e.ti.com/.../help-to-find-pwm-controllers-and-other-parts-for-push-pull-dc-dc-converter refer to SLUP114 as an application note discussing the use of current sense transformers…

  • 4 months ago
  • Power management
  • Power management forum

• UC3525A: UC3525A waveforms issue

  

  Rock Shao

  TI Thinks Resolved

  Part Number: UC3525A Hi Team, Please refer to the schematic, Customers use UC3525 to create push-pull topology; CH1: Vo (yellow) CH2: COMP (pin 9/green) CH3: OP+ terminal (pin 2/blue) CH4: OP - terminal (pin 1/red) Under normal circumstances, pin4 will…

  • 8 months ago
  • Power management
  • Power management forum

• UC3525A: Can you please resend the link regarding BOOST application notes in this link? Thank you!

  

  liujun

  TI Thinks Resolved

  Part Number: UC3525A Can you please resend the link https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/74229/using-uc3525-for-boost-feedback regarding BOOST application notes in this link? The red elliptical part…

  • 8 months ago
  • Power management
  • Power management forum

• UC3525A: When I used UC3525 as a push-pull converter and adopted full bridge rectification output, I encountered some problems。

  

  liujun

  TI Thinks Resolved

  Part Number: UC3525A The output of the push-pull converter is used as the bus voltage to supply the single-phase inverter H-bridge (i.e. realizing the conversion of DC24V to AV380V, 50HZ)。The inverter output adopts an open-loop method The output voltage…

  • 8 months ago
  • Power management
  • Power management forum
Answered

• UC3525A: OSC pin connect 470pF or 10k to GND

  

  GaryC

  Resolved

  Part Number: UC3525A If the OSC pin is connected to a 470pF or 10K resistor to ground, will there be any problems when using the UC3525? Thanks BR, Gary

  • Resolved

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

• UC3525A: UC3525A

  

  Wojciech Sawicki

  TI Thinks Resolved

  Part Number: UC3525A Other Parts Discussed in Thread: STRIKE , , UCC28C45 Dear All, Me too. I would like to create Tina SPICE model of UC3525. Anybody knows which way is possible create this IC macro model using discrete componnents? On the data sheet we…

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

• RE: UC3525A: When I used UC3525 as a push-pull converter and adopted full bridge rectification output, I encountered some problems

  

  Hong Huang

  Resolved

  Hi, so you need to compare the difference between transformers. I suspect their turns ratios and leakage different.

  • 10 months ago
  • Power management
  • Power management forum

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