So, they put a supercapacitor between the rectifier and the output to stabilize the voltage. This is old technology. The reason why so few cyclists use a dynamo nowadays is not because of the voltage instability, it's because a dynamo slows you down, and because good, long-lasting and rechargeable batteries are ubiquitous.
So, they put a supercapacitor between the rectifier and the output to stabilize the voltage. This is old technology. The reason why so few cyclists use a dynamo nowadays is not because of the voltage instability, it's because a dynamo slows you down, and because good, long-lasting and rechargeable batteries are ubiquitous.