AC front-ends & PFC, flyback/LLC/active-bridge stages, SR & feedback, digital control/PMBus, sensing & references, USB-C PD/paths, GaN drives, PoE, industrial/medical PSUs, automotive accessory power, chargers and server/bench PSUs.
AC Front-End & PFC
AC Input & EMI Front-End
Active X-cap discharge, inrush/NTC control, transient/UV comparators and bridge-drive hooks.
PFC (CCM/CRM/Totem-Pole)
Controllers with gate drives, ZCD/valley detect and optional digital PFC co-processing.
Primary / Secondary Conversion
Primary-Side Flyback
Current-mode/QR controllers, PSR/SSR options, spread-spectrum and ultra-low standby.
Synchronous Rectification Controller
Secondary-side MOSFET control with conduction criteria, light-load exit and protections.
LLC Resonant Half-Bridge
Resonant controllers & half-bridge drives, soft-start/hiccup and frequency modulation.
Active Bridge / Bridgeless
Active-rectifier controllers with phase sync, conduction control and efficiency monitors.
Digital PSU Controller (PMBus)
Multi-PWM/current loops, remote param tables, telemetry & fault logs over PMBus/SMBus.
Gate Drive, Sensing & References
Isolated Gate Driver
High CMTI, Miller clamp, UVLO and isolated-bias interface.
Current/Voltage Sensing
Shunt/isolated amplifiers, ΣΔ modulators, precision refs and temperature compensation.
References & Bias
Low-drift references, linear bias LDOs and reference monitoring/PG signaling.
Isolated Feedback (Opto/Alt)
Isolation amps/digital isolators, secondary error amps and sample/hold feedback paths.
Thermal, Protection & Hot-Swap
Thermal & Fan Control
Multipoint temperature sensing, fan/pump drivers and derating curves.
OV/OC/SCP Protection
Fast comparators, programmable limits and hiccup/latch strategies.
eFuse & Hot-Swap
Soft-start current limiting, SOA protection, reverse blocking and telemetry.
Downstream Rails & Supervisors
Multi-Rail PoL DC-DC
Sync-buck controllers/modules with sequencing/tracking and remote comp/PMBus.
Power Sequencing & Supervisor
Rail sequencing, threshold/window watchdogs, reset & hold-up coordination.
USB-C Power
USB-C PD/QC/PPS Controller
CC logic & power negotiation, PDO/AVS outputs, cable authentication and protections.
USB-C Power Path / Load Switch
Direction switching/OR-ing with OT/OC and reverse-polarity protections.
Adapter Architecture
Adapter Primary Controller
Startup & burst modes, valley turn-on, spread-spectrum and ultra-low standby.
Adapter Secondary Power
SR + secondary regulation, small LDO/buck rails with PG/indicators & I/O.
GaN Driver for Adapters
Fast gate driving, lead-inductance compensation, dead-time tuning and gate protection.
PoE & Industrial Front-Ends
PoE PD Module (802.3af/at/bt)
PD controllers for detect/classify, isolated DC-DC rails and loop stability/protection.
24V → Board Front-End
Flyback/non-isolated buck with wide VIN, surge survival and EMI optimization.
Medical/Compliance Monitors
Leakage/isolation monitors, MOPP/MOOP hooks and fault reporting.
CV/CC, Wireless Charging & Backup
CV/CC Offline LED/Charger
Flyback CV/CC with primary sampling, hiccup/OTP protections.
Wireless Charger TX (Qi)
Driver/resonant control with ASK/FSK comms, FOD and thermal management.
Wireless Charger RX (Qi/PMA)
Rectification/regulation, comm demod, power-path control and thermal protection.
Hold-Up / Backup for Adapters
Supercap management for power-loss hold-up, fast shutdown and event logging.
Form Factors & Systems
Wall-Wart Micro PSU
Highly-integrated offline controllers with secondary LDOs and minimal BOM.
ATX/CRPS/Server PSU
Digital control with PFC+LLC stacks, PMBus telemetry, paralleling/current share and redundancy.
Bench / Programmable PSU
Mixed-signal control with precision DAC/ADC, rich protections and USB/LAN I/O.
In-Car Accessory PSU (Non-Traction)
Sync buck + multi LDOs with load switches, transient & cold-crank handling.
External Charger Brick
Flyback/LLC + SR with fast-charge protocols and integrated thermal/EMI protections.
