Texas Instruments ucc are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments ucc DESCRIPTION. The UCC is a phase shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-. This application report will compare the BiCMOS UCC to its bipolar predecessors, the. UC/6/7/8 family and the UC controller. All of these.
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The difference is that the increased current in the PMP increases the feedback voltage but in the EVM the increased phototransistor current reduces the feedback voltage. The opto output is fed into the error amplifier of the UCC through R TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right.
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In both the EVM and the PMP designs if Vout increases, the error amplifier will sink more current in the optocoupler which increases the current in the phototransistor.
Go to Support forums. There is little difference between the two approaches. We are glad that we were able to resolve this issue, and will now proceed to close this thread. I think it comes down to different designers, at different times making different decisions – both of which are workable solutions to the problem. Feb 5, 6: All content and materials on this site are provided “as is”.
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