Search site Account Dialog Applications Products Support Investors Company 100W+ Chargers in Half the Size Using Zero Voltage Switching (ZVS) Dialog’s digital Zero Voltage Switching solutions can shrink 100W+ chargers up to 50% at low total BOM cost. Our patented ZVS technology solves the thermal constraints associated with the AC/DC converter efficiency, while reducing component size to enable high power density in an ultra-compact, light-weight charger form factor. ZVS Solution Features High switching frequency (up to 200kHz) enables: Lighter, smaller transformer Smaller passive components for easier EMI control Patented adaptive ZVS control for high efficiency and low EMI Efficiently recycles energy to minimize heat generation Up to 94% efficiency User-configurable ZVS timing optimizes performance for different power MOSFETs Patented adaptive, seamless multi-mode control (MMC) improves efficiency and eliminates audible noise Supports fine step CV/CC regulation when paired with Dialog’s iW709 secondary-side controller or with TL431 Drives GaN devices via OUTPUT pin directly or external GaN driver Best for output power from 20W to 100W+ AC unplug detection and X-cap discharge Rich protection for: Over-voltage (OVP) Over-current (OCP) User-configurable over-temperature Shoot-through Brown-in/brown-out VSENSE/ISENSE short Output short Extra primary side OCP & OVP if optocoupler fails Intelligent, eco-friendly low standby power < 20mW Supports USB Power Delivery 3.0 with PPS (iW709) Integrated VBUS NFET driver (iW709) Supports Direct Charge (iW709) Hardwired state-machine solutions: prevent hacking of fast chargers 65W adapter using Dialog’s complete ZVS controller solution achieves 94% efficiency in a 50% smaller case. Expand Complete ZVS 2-chip solution for USB PD chargers Expand ZVS solution works with industry standard programmable references Notes All primary-side ICs (iW17xx & iW98xx) feature advanced cable fault protection USB-IF PD Certified (USB PD 3.0 + PPS): iW709 & iW657P VBUS Switch Driver: Integrated charge pump that drives an external N-channel MOSFET protects VBUS from output short-circuit damage and enables lower cost, easier sourcing vs P-channel ZVS: Zero Voltage Switching flyback technology SSR: Secondary-Side Regulation Footer quick links Products Power Programmable Mixed Signal Devices Connectivity Audio Memory Industrial Edge Computing Interface/Sensory Silicon IP Mixed Signal ASICs Applications Internet of Things Automotive Mobile Computing & Storage Industrial Internet of Things Investor Results Center Quarterly Reports Our Code of Business Company About us Careers News Contact Social Linkedin Twitter YouTube Facebook Footer menu Legal and terms Legal Notices Modern Slavery Act Terms of Purchase Terms of Sale Privacy Policy © 2021 Dialog Semiconductor We use cookies on this site to enhance your user experience. See our cookie policy for further details on how we use cookies and how to change your cookie settings Accept all cookies