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How UVLO works?
During operation, if the power supply voltage drops and becomes lower than the UVLO detection voltage, UVLO brings the internal circuit into a semi-standby state to prevent malfunction. When the power supply voltage rises and becomes higher than the UVLO release voltage, UVLO is released and the operation restarts.
Can low power damage appliances?
If the voltage is too low, the amperage increases, which may result in the components melting down or causing the appliance to malfunction. If the voltage is too high, this will cause appliances to run ‘too fast and too high’ which will shorten their service life.
What does UVLO stand for in power supply?
UVLO stands for Under Voltage Lock Out and refers to the undervoltage lockout function. During operation, if the power supply voltage drops and becomes lower than the UVLO detection voltage, UVLO brings the internal circuit into a semi-standby state to prevent malfunction.
When to release UVLO in semi standby mode?
During operation, if the power supply voltage drops and becomes lower than the UVLO detection voltage, UVLO brings the internal circuit into a semi-standby state to prevent malfunction. When the power supply voltage rises and becomes higher than the UVLO release voltage, UVLO is released and the operation restarts.
What is the input voltage of a UVLO circuit?
The UVLO circuit was fabricated using a 0.5 µm CMOS technology operating at a supply voltage of up to 5V, yielding a low quiescent current of 12 µA, an input high threshold voltage of 3.75 V and a hysteresis of 0.55 V.
What is the UVLO function of an IGBT?
When operating a power device such as IGBT, if the gate voltage of the controlled power device drops, conduction loss increases, causing a loss increase and device destruction. A gate driver IC coupler for pre-driving such a power device may incorporate the UVLO function to control the above phenomenon.