What is Normally-off?
The property of passing no current when the gate voltage is 0 V. It is required of power devices for safety, since current stops even if the drive circuit fails.
Field: Power semiconductors
Normally-off in the explanations
Turning the MOSFET off negatively biases the HEMT gate, switching it off automatically, so the pair behaves as a normally-off device driven by a standard silicon MOSFET gate driver.
Which configuration combines a normally-on GaN HEMT in seri…Using non-volatile memory for caches and registers lets the system cut power at every idle moment without losing data, reducing standby power to nearly zero with fast wake-up (normally-off computing).
Which correctly describes how using non-volatile memory for…Power circuits therefore demand normally-off devices.
Why are power devices required to be 'normally off', with n…
Questions that mention Normally-off (3)
- Which configuration combines a normally-on GaN HEMT in series with a low-voltage silicon MOSFET so it can be used safely with normally-off behavior?
- Which correctly describes how using non-volatile memory for caches and registers is expected to save system power?
- Why are power devices required to be 'normally off', with no current flowing at 0 V gate voltage?
Related terms
GaN (gallium nitride) HEMT (high-electron-mobility transistor) Gate driver Body diode DC-DC converter Dead time IGBT On-resistance Power MOSFET Short-circuit withstand time