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Showing 50 results View by: Thread Post Sort by
  • UC1875-SP: UC1875-SP internal error amplifier phase and gain margin @ unitary gain

    Davide Colombo
    Davide Colombo
    Part Number: UC1875-SP Other Parts Discussed in Thread: UC1875 Hi, I'm using the UC1875 with the internal error amp configured as non inverting buffer (output pin directly connected to inverting input) The non inverting input is filtered with 470pF…
    • 1 month ago
    • Power management
    • Power management forum
  • UC1875-SP: UC1875W-SP (5962-9455502VKA) PWM controller issues

    Davide Colombo
    Davide Colombo
    TI Thinks Resolved
    Part Number: UC1875-SP Hi, Some times ago we bought few UC1875W-SP (5962-9455502VKA) PWM controller. ATN Purchase Order ref.: 5021381/ pos. 001 PO placed by ATN through TI WEB SIDE TI Invoice number: 5851823042 TI Invoice date: February 17…
    • 1 month ago
    • Power management
    • Power management forum
  • UC1875-SP: Peak Current mode

    Andres Gomez
    Andres Gomez
    Part Number: UC1875-SP Other Parts Discussed in Thread: TPS7H4011-SP , UC2846 , TPS7H5020-SP , UC1825B-SP , UC1875 Hi, Is the UC1875-SP capable of Peak Current Mode control? I ask because the RAMP pin is compared to the COMP signal, and the datasheet…
    • 6 months ago
    • Power management
    • Power management forum
  • UC1875: UC1875输出脉冲一闪一闪

    Tom Tom
    Tom Tom
    TI Thinks Resolved
    Part Number: UC1875 Tool/software: UC1875在开环时,输入条件:19脚三角波峰值4.1V,频率40KHz,2脚4.8V。结果其输出脉冲波形,一闪一闪的,间隔1秒左右,即1秒有1秒无。不知道是哪里的问题,是板子布的有问题还是别的原因? 拿正常的板子做对比,正常板子就是持续的输出。
    • over 1 year ago
    • Power management
    • Power management forum
  • UC1875: Can UC1875 achieve rapid conversion between two voltages?

    Tom Tom
    Tom Tom
    TI Thinks Resolved
    Part Number: UC1875 Other Parts Discussed in Thread: UCC28782 Tool/software: If you want to achieve an output that reaches 800V for a short period of time after booting up, and then rapidly drops to maintain the normal 300V, can you use UC1875 to achieve…
    • over 1 year ago
    • Power management
    • Power management forum
  • UC1875: UC1875的移相角究竟能不能控制输出电压?

    Tom Tom
    Tom Tom
    TI Thinks Resolved
    Part Number: UC1875 Tool/software: 测试UC1875时,发现输出采样回4脚的各种电压,只要比3脚电压高的话,误差放大器输出恒定高电平,移相角也是恒定的。此时似乎输出电压是不受移相角所控制的(常规的是通过移相角去控制输出电压的)。 貌似只有平衡时,才构成整个回路的闭环。 那么,怎么通过移相角去控制输出电压呢?即移相角大点输出就大点,移相角小点输出就小点
    • over 1 year ago
    • Power management
    • Power management forum
  • UC1875-SP: Kindly provide a model which support in LTSpice.

    Hridya TV
    Hridya TV
    TI Thinks Resolved
    Part Number: UC1875-SP Other Parts Discussed in Thread: UCC28950 Tool/software: I would like to get the model for either UC1875-SP or UCC28950 which is supported in LTspice
    • over 1 year ago
    • Power management
    • Power management forum
  • UC1875-SP: Calculation Reference Document

    Hridya TV
    Hridya TV
    TI Thinks Resolved
    Part Number: UC1875-SP Tool/software: Dear Team, We wish to use UC1875-SP in a Step up configuration. I was initially referring Ref this. I find the calculation side having several deviations from the solution to equations used in the respective reference…
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • UC1875-SP: Regarding the SS pin functionality

    Hridya TV
    Hridya TV
    Resolved
    Part Number: UC1875-SP Other Parts Discussed in Thread: UCC28950 Tool/software: Dear Team, Kindly clarify the below queries; I would like to know whether "if the capacitor placed at the SS pin discharge, whether the IC will be shutdown? We are…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • UC1875-SP: step-up/ step-down converter

    Gadi Fishel
    Gadi Fishel
    Resolved
    Part Number: UC1875-SP Other Parts Discussed in Thread: TPS7H6003-SP , UC1875 Greetings, Could a DC-DC phase-shift bull bridge topology controlled by the following component (UC1875-SP) be used for a step-up/ step-down converter? Input voltages: 50VDC…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
>

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