Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications
Description
This reference design features multiple approaches for protecting AC or DC analog input: DC analog output: AC or DC binary input: digital output with a high side or low side driver: LCD bias supply: USB interfaces (power and data) and onboard power supplies with 24: 12 or 5V input used in multiple grid applications against overvoltage: overload and transients (1.2/50 us: 42-Ω) using flat-clamp surge protection: ESD devices: eFuse or a load switch. The design monitors temperature: humidity: magnetic fields and power supplies for diagnostics.
Features
- Protecting AC or DC analog inputs or outputs against overvoltage and transients ( ±1.5 KV) interfaced to the ADS8688 (±20-V) : ADS8588S (±15-V ) input range: and DAC8771 with ±15-V output rangeInput overvoltage and current sensor open protection for AC inputs interfaced to ADS131E08 or ADS131A04 with ±4-V input rangeProtecting digital IO against overvoltage and transients for 24-V or 48-V rated binary inputs or outputs using voltage detector: self-powered isolated digital input receiver and digital output driver rated for 24-V output with high-side or low-side drive capabilityGeneration of analog power supplies including dual supply for AC analog input measurement from a single 5-V input and accurate: stable references for SAR or Delta-Sigma ADCProtecting onboard power supplies against transients and overload including ±12-V: LCD bias supply configured for 18 V: USB power supply with programmable or fixed output current limit and differential USB data lines
Applications
- Electricity meter
- Oscilloscopes & digitizers
- Spectrometer
- Aircraft cockpit display
- Interconnect/distribution box
- Automotive test
- Fault indicator (FI)
- AC charging (pile) station
- Laser distance meter
- DC fast charging station
- Multifunction relay
- Battery energy storage system
- Smart combiner box
- Remote power distribution automation
- Grid asset monitoring
- Source measurement unit (SMU)
- Battery cell formation & test equipment
- AC analog input module
- DC analog input/output module
- Binary input module
- Processor module
- Wired communication modules
- Compact relay
- Expansion module
- EV charging station HMI module
- DC fast charging power module
- Wireless EV charging station
- Substation automation
- Telecom monitor unit
- Circuit breaker (ACB
- MCCB
- VCB)
Product Categories
- Interface