Flyback transformer and yoke tester
OwnerElver B. Kephart, Jr., Nove J. Kephart, Sr.inventors
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Abstract
An apparatus is disclosed for testing the integrity of inductive coils such as yokes, flyback transformers, and the like. The apparatus includes a compact housing which makes it portable and convenient for field use. The apparatus includes circuitry disposed in the housing for inducing current through the inductive coil being tested. An array of LED's is provided to give the operator a visual display which is indicative of the condition of the inductive coil. The apparatus also includes means for connecting a meter or oscilloscope to the circuit in order to examine the electrical signature from the inductive coil being tested.
Claims16
Apparatus for testing an inductive coil comprising:
- power supply means for providing a d.c. voltage and current flow;
- a circuit connected to the power supply means including:
- timing means for generating a frequency pulse train,
- means for multiplying the d.c. voltage in said circuit to generate a multiplied output, said means for multiplying the d.c. voltage including means for receiving said frequency pulse train,
- amplification means, coupled to said voltage multiplying means and adapted to receive the multiplied output, the amplification means adapted for amplifying the current across the inductive coil,
- a comparator for comparing an instantaneous voltage across the inductive coil to a reference voltage, and
- output means, coupled to said comparator, for producing a signal indicative of the state of the inductive coil;
- and
- means for connecting the inductive coil to said circuit to generate the instantaneous voltage.
An apparatus for testing an inductive coil comprising:
- a power supply means for providing a direct current voltage and current flow;
- an oscillator connected to the power supply means for generating a waveform;
- an amplification means connected to the oscillator for receiving and amplifying the waveform;
- a connecting means electrically connected to the amplification means and adapted to connect the inductive coil being tested to the amplification means;
- a comparator electrically connected to the connecting means, the comparator adapted to receive the instantaneous voltage across the inductive coil and generate a comparator signal indicative of the condition of the coil by comparing the instantaneous voltage to a feedback signal generated from the comparator signal;
- and
- an output means coupled to said comparator for receiving the comparator signal and producing an output signal indicative of the state of the inductive coil.
Dependencies are inferred from the claim text.