An inductor is inserted in series with the output of the step-down converter, and so the current in the output capacitor rises and falls, but is smooth.
During the operation, the LED current can be controlled by using a pulse width modulation(PWM) signal applied to the CTRL pin, through which the duty cycle determines the feedback reference voltage.
The coil current does not change over one period 2 The capacitor charge amount does not change over one period Step 2: Determine change amounts for an external disturbance, and describe the transfer functions Calculation examples are shown below.
The internal transient digital currents of the converter will flow in the small loop from VD through the decoupling capacitor and to DGND this path is shown in red on the diagram.
English
中文
عربى
Български
বাংলা
Český
Dansk
Deutsch
Ελληνικά
Español
Suomi
Français
עִברִית
हिंदी
Hrvatski
Magyar
Bahasa indonesia
Italiano
Қазақ
한국어
മലയാളം
मराठी
Bahasa malay
Nederlands
Norsk
Polski
Português
Română
Русский
Slovenský
Slovenski
Српски
Svenska
தமிழ்
తెలుగు
ไทย
Tagalog
Turkce
Українська
اردو
Tiếng việt