US 7,030,727 B2 · High voltage variable resistor device

Abstract

A high voltage variable resistor device includes film resistors of fixed divided resistors and a variable divided resistor, fixed resistors, a variable resistor for adjusting focus voltage, and a variable resistor for adjusting screen voltage, which are formed on the surface of an insulation substrate. The fixed divided resistors have a meandering pattern and a high resistance. One end of the fixed divided resistor is connected to a high-voltage input terminal, and the other end is connected to one end of the variable divided resistor. The variable divided resistor has an arc pattern, and its other end is connected to one end of the fixed divided resistor. The other end of the fixed divided resistor is connected to a voltage detection terminal. The fixed divided resistor having a wide width pattern having a low resistance is connected between the voltage detection terminal and a ground terminal.

Claims10

Dependent claims

A high voltage variable resistor device, comprising:

a plurality of divided resistors for voltage detection, which are electrically connected in series between a high-voltage input terminal and a ground terminal, at least one of said plurality of divided resistors being a variable resistor;
a voltage detection terminal that is electrically connected in an approximate middle region of the plurality of the series-connected divided resistors;
an insulation substrate;
and
one of a resistor for adjusting focus voltage and a resistor for adjusting screen voltage provided on said insulation substrate;
wherein
said voltage detection terminal, said high-voltage input terminal, and said ground terminal are provided on said insulation substrate;
and
each of the plurality of divided resistors is provided on the insulation substrate.

6 more elements

Dependencies are inferred from the claim text.

High voltage variable resistor device

Life of this patent

High voltage variable resistor device

Life of this patent

Abstract

Claims10