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Start-up circuit of CFL ballast

Thread starter eem2am
Start date Oct 7, 2009

Status: Not open for further replies.

Oct 7, 2009

eem2am

Banned

Hello,

Page 3 of the following shows an offline CFL ballast

https://www.st.com/stonline/books/pdf/docs/3706.pdf

please may i ask......does R1 continue to draw bias current from the DC bus after start-up, whilst the lamp is running?

Status: Not open for further replies.

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Start-up circuit of CFL ballast

eem2am

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