Answered

• UCC2818: UCC2818 Maximum line frequency range

  

  luis colque

  Resolved

  Part Number: UCC2818 Hi, I am evaluating the UCC2818 for a CCM boost PFC stage in an “variable-frequency” application. Operating conditions: – AC input: 115 Vrms nominal – Line frequency: 360 to 800 Hz – Output power: 2 kW – Topology: CCM…

  • Resolved

  • 3 months ago
  • Power management
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• UCC2818: UCC2818

  

  Balakrishna Marripati

  Part Number: UCC2818 Tool/software: Hi, I am using UCC2818D for AC-DC converter (300W), but I got efficiency only 82% with resistive load, can you please let me know how I can increase the efficiency. I have attached schematic in previous case no CS2319816…

  • over 1 year ago
  • Power management
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• UCC2818-EP: UCC2818-EP

  

  Sateesh Talisetty

  TI Thinks Resolved

  Part Number: UCC2818-EP Tool/software: Hi TI team, We are planning to use UCC2818-EP in our design. Following is our requirement Vin :100Vrms to 134Vrms (360Hz to 800Hz) Vout : 400V (24W) As per datasheet, for the power level we have to use…

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

• UCC2818: UCC2818 Soft Start Behavior

  

  Thien Huynh

  Resolved

  Part Number: UCC2818 Tool/software: Hi, I am trying to make sense of the behavior of the UCC2818. I was under the impression that the soft start voltage will control the rate of rise of the bus voltage during start up. However, that does not seems…

  • Resolved

  • over 1 year ago
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• UCC2818-EP: UCC2818EP maximum switching frequency

  

  luis colque

  TI Thinks Resolved

  Part Number: UCC2818-EP Hi, I want to confirm the maximum switching frequency of the UCC2818EP. Is it 120 kHz, or can it go higher? Thank you! Kind regards, Luis.

  • 1 month ago
  • Power management
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• UCC2818-EP: UCC2818-EP and UC2854-EP

  

  Rahamadullah A

  TI Thinks Resolved

  Part Number: UCC2818-EP Other Parts Discussed in Thread: UC2854B-EP , UC2854 , UCC2818 Tool/software: Hi TI team I would like to know which among these PFC ICs (UCC2818-EP and UC2854-EP) can have <5%THD on the input current for input frequency of…

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

• UCC2818-EP: UCC2818-EP PFC Input current problem

  

  Rahamadullah A

  TI Thinks Resolved

  Part Number: UCC2818-EP Other Parts Discussed in Thread: UCC28180 , PMP31164 , UCC25640EVM-020 Tool/software: Hi TI team We have build a PFC board using UCC2818-EP PFC IC. Following is our requirement Vin :100Vrms to 134Vrms (360Hz to 800Hz) …

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

• UCC2818: Buck Controller with Average Current Mode Control and True 100% Duty Cycle

  

  Ahmad Kamal

  TI Thinks Resolved

  Part Number: UCC2818 Tool/software: Hi team, I'm looking for a buck controller that supports Average Current Mode Control (ACMC) and can also achieve a true 100% duty cycle. These two features seem difficult to find together in a single device. Application…

  • 7 months ago
  • Power management
  • Power management forum

• UCC25660: AFPC not starting / working ucc2818

  

  Dietrich Rushing

  TI Thinks Resolved

  Part Number: UCC25660 Other Parts Discussed in Thread: UCC28180 Tool/software: Hi, So my architecture is something like this: Mains -> filter + inrush limiting -> rectifier-> UCC28180DR APFC --> UCC256601 LLC I plunged in the design and i saw what…

  • 11 months ago
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  • Power management forum

• UCC2818-EP: Power management forum

  

  Rahamadullah A

  TI Thinks Resolved

  Part Number: UCC2818-EP Other Parts Discussed in Thread: UCC2818 , UC2854 Tool/software: Hi TI team, I have following requirements Input voltage -100Vrms to 134Vrms Frequency- 360Hz to 800Hz output voltage- 400V output power 100W I am…

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

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