JPH0232699U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a circuit diagram showing the main parts of one embodiment of the present invention. Fig. 2 is a comparative illustration of an example of operation according to the present invention and a conventional example. Fig. 3 shows an inverter oscillating at a constant frequency, and a current FIG. 6 is an explanatory diagram of an example of operation when the pulse width is changed by a value. 1 is an AC power supply, 3 is an inverter section, 3a is its output current detector, 3b is a comparator, 3c is a reference voltage setting device, 3d is an inverter control section, 5 is a high voltage transformer, 7 is a high voltage capacitor, 8 is a three It is a polar X-ray tube.

Amendment October 26, 1983 The brief description of the drawing is amended as follows. The following statement is added to page 6, line 10 of the specification: "Fig. 4 is a circuit diagram of the main part of the conventional example."

Claims (1)

[Scope of utility model registration request] The inverter section is installed on the primary side of the high voltage transformer, and the
In a capacitor-type X-ray device that has a high-voltage capacitor on the next side, there is a current detector that detects the output current of the inverter section, a reference voltage setting circuit that corresponds to the current capacity of the power supply, and a circuit that connects the set voltage and current detector. A capacitor-type X-ray device characterized by comprising a comparator with a voltage corresponding to the output, and an inverter control circuit that automatically changes the oscillation frequency of an inverter section according to the output of the comparator. .