Reference Design Files
AD-400V
ZIP | Feb 19, 2025
Active Discharge Circuit for 400 V Systems
Active discharge is a method of discharging stored energy in a capacitor (or any other energy-storing element) in a controlled manner. This allows the system voltage to reach a safe value within a certain amount of time, thereby preventing the risk of electrical shock. Active discharge is distinguished from passive discharge or bleed resistors in such, that the discharge process is faster and actively initiated and therefore leads highe efficiency of the system during normal operation. The solution uses an SJ Si MOSFET, driven by a photovoltaic gate driver, to enable discharge of a 400 V system through a pulse-prove resistor and can be easily tailored to the exact requirements.
Reference
Functional Block Diagram
Features
- High pulse load surface-mount wirewound resistors, carbon film MELF resistors, and thick film technology resistors
- Low part counts isolated gate drive circuit without the need for an external power supply
Products
Resistor: AC, AC-AT, AC-NI
Standard: AC, AEC-Q200 Qualified: AC-AT, Non-Inductive AC-NI Cemented Axial Leaded, WSZ (SMD) Wirewound Resistors
MOSFET: SiHH240N60E
E Series Power MOSFET
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