Driving/Moving Recording Heads TRIZ Cases
- Dynamic Fly Height Control via Off-Track Heater Segmentation
Segmented off-track heaters distribute thermal expansion to reduce contact stress during touchdown events, protecting the head from interference.
- Magnetic Disk Drive Flying Height Control via Helium Gas Estimation
A magnetic disk drive estimates low density gas amount to adjust flying height of the magnetic head.
- Cascaded Voltage Regulators for Data Storage Power Failure
A backup voltage regulator converts high capacitor voltage to supply levels, enabling non-volatile memory operation during power loss.
- Reader Head Instability Recovery via Thermal Shock
Controller uses internal head heater to apply thermal shock, restoring stability to unstable reader heads and reducing manufacturing failure rates.
- Disk Drive Voltage Booster Reducing Boost During Power Failure
A voltage booster adjusts its boost factor based on decreasing power voltage to maintain control circuitry operation.
- Spindle Motor Power Generation During Drive Failure
Control circuitry configures a rotating spindle motor into a power generator by adjusting driving voltage amplitude and polarity.
- Ultrasonic Piezoelectric Actuator for Data Storage Drive Arm
An ultrasonic piezoelectric actuator moves a data storage drive arm vertically along a pivot block.
- HSA Elevator Z-Height Adjustment via Head Feedback
Piezoelectric sensors detect head-disc spacing variations and drive an elevator mechanism to adjust z-height, reducing resonance risks.
- Thin-Film Magnetic Pole Plating Seam Elimination
Electrode film placement under the wide portion of a magnetic pole enables seamless plating growth in the narrow groove.
- Disk Controller Subtrack Synchronization for Signal Interference
A disk controller synchronizes write positions across adjacent subtracks to maintain three-level signal integrity.