High frequency gas discharge lamp dimming ballast

摘要: A high frequency gas discharge lamp dimming ballast with good line power factor is disclosed. The unit controlled by a current sensing loop which senses control switch rather than and employs simple circuitry sufficiently rapid response necessary to maintain stable operating characteristics over very wide range of light output. An isolated output transformer provides protection against most common miswire conditions accurately regulates energy input arc voltage conditions. pulse width modulated an for easier wiring reduces the susceptibility noise interference.