 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
L6472 Datasheet(PDF) 36 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
L6472 Datasheet(HTML) 36 Page - STMicroelectronics |
|
|
36 / 69 page  Phase current control L6472 36/69 Doc ID 022729 Rev 1 7.3 Auto-adjusted fast decay during the falling steps When the target current is decreased by a microstep change (falling step), the device performs a fast decay in order to reach the new value as fast as possible. Anyway, exceeding the fast duration may cause a strong ripple on the step change. The L6472 automatically adjusts these fast decays reducing the current ripple. At reset, the fast decay value (tFALL) is set to FALL_STEP/4 (T_FAST register). The tFALL value is doubled every time, within the same falling step, an extra fast decay is necessary to obtain an ON time greater than TON_MIN. The maximum tFALL value is equal to FALL_STEP. At the next falling step, the system uses the last tFALL value of the previous falling step. Stopping the motor or reaching the current sinewave zero crossing causes the current control system to return to the reset state. Figure 18. Adaptive decay switch from normal to slow+fast decay mode and viceversa |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
