 |
データシートサーチシステム |
|
|
データシートサーチシステム |
|
L5953 データシート(PDF) 28 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
L5953 データシート(HTML) 28 Page - STMicroelectronics |
|
|
28 / 31 page  Application note L5953 28/31 1. Fix the cross-over frequency fC of the overall loop gain. Usually: where fsw,min is the minimum switching frequency 2. Calculate the high frequency error amplifier gain 3. Chose R3 and calculate The value for R3 has not to be very high (for example 10K Ω) so to limit the error due to an error amplifier input offset current. 4. Calculate 5. Finally calculate and f c 0.1 f sw,min ⋅ = G c 0.25 f c 2 π L1 ESR ------------- ⋅ ⋅⋅⋅ = C8 2 L1 C7 ⋅ R3 ----------------------- ⋅ = R p R3 2 ESR ------------- L1 C7 -------- ⋅ ⎝⎠ ⎛⎞ 1 – --------------------------------------------- = R1 R p V O V ref PWM , -------------------------- ⋅ = R2 R p 1 V ref,PWM V O ------------------------- – ---------------------------------- = R4 G C R1 ⋅ = C9 2 L1 C7 ⋅ R4 ----------------------- ⋅ = |
|
リンク URL |
| ALLDATASHEETはお客様のビジネスに役立ちますか？ [ DONATE ] |
Alldatasheetは | 広告 | お問い合わせ | プライバシーポリシー | データシートへのリンク | リンク交換 | メーカーリスト All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Japanese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
