Overview
Description
This AS048 2100W, single-plate induction cooktop design, using the iW248 smart IGBT driver and controller single-chip ASSP, offers high-efficiency and high-reliability performance. The design gives the flexibility to adjust the power in ±10W steps, which allows the users to cook at a simmering condition. The RL78/G15-based HMI card offers a low pin count, multiple matrix switches, LED indication, and a 7-segment display. Additionally, a capacitive touch sensing unit (CTSU) enables robust capacitive touch, which senses properly in wet conditions. Over-temperature detection using three negative temperature coefficient resistors (NTCs) is provided in the design.
Features
- Integrated ASSP design offers a low-cost, low-component-count system.
- AC input, IGBT voltage spike detection, and current sense using the iW248 help with fast protection response. It is a digital controller with analog driver blocks using a state machine that offers a much faster response.
- Patented low-power technology provides adjustability to ±10W, allowing users to cook at the simmer condition.
- Operates in constant current or constant power mode as per the VCE voltage detection.
- Three-temperature detection option with adjustable settings.
- Adjustable overvoltage cutoff and recovery register settings.
Applications
Design & Development
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