The Ripple Life Test is a specialized service aimed at determining the service life of capacitors under electrical conditions representative of real operation. In applications where alternating current is superimposed on the DC voltage, the component experiences internal heating that accelerates its degradation.
Using dedicated instrumentation such as the Chroma 11800, controlled ripple current profiles are applied to induce accelerated aging, making it possible to evaluate the capacitor’s behavior in a controlled environment.
Test methodology
During the test, typical operating conditions in power electronics are reproduced:
- Simultaneous application of ripple current and DC bias
- Control of electrical and thermal parameters
- Continuous monitoring of critical variables
Key indicators are analyzed, such as:
- Capacitance change
- ESR (equivalent series resistance) increase
- Evolution of the internal temperature
Applications
This service is especially relevant for:
- Switch-mode power supplies
- Automotive electronics
- Industrial power systems
It makes it possible to anticipate failures, validate designs, and compare performance among different technologies or suppliers.
Service benefits
- Prediction of component service life
- Early identification of degradation
- Lower field risk
- Technical support for design decisions
A key tool for ensuring reliability in applications where capacitors operate under demanding conditions.
