High voltage deflection circuit
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTomonari Oogami, Takahumi Nagasue
Life of this patent
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Abstract
A resonant pulse voltage having a positive polarity is applied by a first resonant circuit and a third resonant circuit to a horizontal deflection coil included in the first resonant circuit, and a resonant pulse voltage having a negative polarity which is opposite to that of resonant pulse voltages applied by the first resonant circuit and the third resonant circuit is applied to only a horizontal deflection coil in the first resonant circuit without being applied to a transistor by a second resonant circuit.
Claims20
A high voltage deflection circuit for supplying a deflection current to a deflection coil, comprising:
- first resonant means including said deflection coil for applying a first resonant pulse voltage to said deflection coil;
- switching means connected to said first resonant means for performing a switching operation in response to a predetermined drive signal;
- and
- second resonant means connected in series with said deflection coil and supplied with a drive voltage by a resonance operation of said first resonant means for applying to said deflection coil a second resonant pulse voltage having an opposite polarity to that of said first resonant pulse voltage.
A high voltage deflection circuit for supplying a deflection current to a deflection coil, comprising:
- a first resonant circuit, including said deflection coil, that applies a first resonant pulse voltage to said deflection coil;
- a switching circuit, connected to said first resonant circuit, that performs a switching operation in response to a predetermined drive signal;
- and
- a second resonant circuit, connected in series with said deflection coil and supplied with a drive voltage by a resonance operation of said first resonant circuit, that applies to said deflection coil a second resonant pulse voltage having an opposite polarity to that of said first resonant pulse voltage.
Dependencies are inferred from the claim text.