In old fluorescent fixtures that used a starter how did they work ( the starter) ?
Short over-simplified version, the "starter" was a capacitor (condenser) that provided a voltage boost to start the excitation of the plasma in the lamps. Once started, it was easier to keep it excited with the ballast output, so the cap was switched out. Modern fixtures use an SMPS power supply so it just changes the PWM output to be at a higher level in the beginning and then backs off.In old fluorescent fixtures that used a starter how did they work ( the starter) ?
Short over-simplified version, the "starter" was a capacitor (condenser) that provided a voltage boost to start the excitation of the plasma in the lamps. Once started, it was easier to keep it excited with the ballast output, so the cap was switched out. Modern fixtures use an SMPS power supply so it just changes the PWM output to be at a higher level in the beginning and then backs off.