JPH09233804A - Voltage adjuster and voltage division adjuster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust voltage with high output stability by equipping a voltage adjuster with a Zener diode for connecting a collector and a base, and a switch for bypassing this or a low-capacity voltage adjuster. SOLUTION: This becomes a low-voltage source where the current is amplified by a transistor 1 and a Zener diode 2 for connecting the collector to the base. Then, this becomes a voltage adjusting circuit which can adjust the voltage limited to the maximum Zener diode voltage of a Zener diode 2 by bypassing the Zener diode 2 by a switch or a low-capacity voltage adjuster 3. Accordingly, even in the case that the impedance of load changes suddenly, the low-voltage property can be maintained and excellent output stability can be obtained since the transistor 1 amplifies the current of the Zener diode 2 or the low-capacity voltage source.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voltage regulator and a voltage divider regulator. More specifically, the present invention relates to a new voltage regulator and a voltage divider regulator that can be suitably used as a voltage regulator for anode electrodes such as gyrotron high-frequency oscillators and klystron amplifier tubes, grid electrodes for vacuum tubes, and the like. Is.

[0002]

2. Description of the Related Art Generally, in a gyrotron high frequency oscillator, the operating potential of its cathode electrode is-.
The operating potential of the anode electrode is 80 kV and is an extra high voltage of about -40 kV. The potential of such an anode electrode must be handled carefully, and it is necessary to maintain 0.5% output stability at a resolution of 200V.

Conventionally, in a voltage adjusting device for an anode electrode such as a gyrotron high frequency oscillating device or a klystron amplifying tube, the anode electrode is formed by a push-pull circuit using a plurality of quadrupole tubes in order to divide such an extra high voltage potential. It controls the potential of. FIG. 1 illustrates a circuit configuration diagram of a voltage adjusting device for an anode electrode of a conventional gyrotron high frequency oscillator. In FIG. 1, the output of the tetrode is controlled by the push-pull circuit using the tetrode to control the anode electrode potential of the gyrotron.

However, in such a conventional voltage adjusting device using a quadrupole tube, in order to operate a plurality of quadrupole tubes, a plurality of auxiliary equipment such as a heater, a control grid, a screen grid, a cooling device, and a power source are used. Therefore, there is a problem that the structure of the device becomes very complicated and large. Also, at present, 4
Since the number of producers of the cathode is very small, it is difficult to obtain the cathode, and there is also a problem that the apparatus becomes expensive.

In view of the above background, the present invention provides a small and inexpensive device without using expensive and difficult-to-obtain voltage control parts such as a quadrupole tube.
With the object of providing a new voltage regulator capable of adjusting and outputting a voltage with high output stability, and a new voltage divider regulator capable of stably dividing the voltage of the special high voltage as described above. There is.

[0006]

To solve the above problems, the present invention provides a transistor, a Zener diode for connecting a collector and a base in a base circuit of the transistor, and a bypass for the Zener diode. And a low capacity voltage regulator.

Further, according to the present invention, in the above voltage regulator, an optical fiber cable for sending a signal for turning on / off the switch or the low capacitance voltage regulator may be connected to the switch or the low capacitance voltage regulator. This is the mode. Furthermore, the present invention also provides a voltage division voltage adjusting device characterized in that the above voltage adjusting devices are connected in series in multiple stages.

According to the present invention, in the above voltage division regulator, an optical fiber cable for sending a signal for turning on / off a switch or a low capacitance voltage regulator of each voltage regulator is a switch or a low capacitance voltage regulator. It is also an aspect that it is connected to.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The voltage regulator of the present invention has a structure including a transistor, a Zener diode, a switch or a low capacitance voltage regulator as described above. As the structure, for example, the structure illustrated in FIG. 2 can be used. FIG. 2 is a circuit configuration diagram of the device.

For example, as illustrated in FIG. 2, the voltage regulator of the present invention includes a transistor (1), a zener diode (2) for connecting the base and collector of the diode (1), and a zener diode (2). It is composed of a switch for bypassing the Zener diode (2) or a low capacitance voltage regulator (3). More specifically, the transistor (1) and the Zener diode (2) connecting the collector and the base of the transistor (1) serve as a current-amplified low voltage source. By bypassing the Zener diode (2) with a switch or a low-capacity voltage adjusting device (3), a voltage adjusting circuit capable of adjusting the voltage limited to the maximum Zener diode voltage of the Zener diode (2) is obtained. .

The on / off switching signal of the switch or the low capacity voltage regulator (3) can also be sent, for example, through an optical fiber cable (4). Since the voltage regulator of the present invention has the circuit configuration as described above, the zener diode (2) or the low-capacity low-voltage source (3) is connected to the transistor (1) even when the impedance of the load changes suddenly. The low voltage characteristics are automatically maintained due to the current amplification, and it has excellent output stability.

Further, the optical fiber cable (4) is used to turn on or off the switch or the low capacity voltage regulator (3).
Since it can be switched off, the voltage can be remotely adjusted, and restrictions on the installation location of the voltage adjusting device can be reduced. As described above, the voltage divider adjusting device of the present invention has a structure composed of a plurality of voltage adjusting devices of the present invention. Such a structure of the present invention is exemplified in FIG. Can be one. FIG. 3 is a circuit configuration diagram of the device.

For example, as illustrated in FIG. 3, in the voltage division regulator of the present invention, a plurality of voltage regulators of the present invention are connected in series in multiple stages. Explaining in more detail, the extra high voltage input can be stably adjusted by serially connecting the voltage adjusting device of the present invention in multiple stages and connecting the current adjusting resistor (5) in series.

Further, since each voltage adjusting device can be controlled by the optical fiber, it is possible to remotely adjust the special high voltage. As described above, since the voltage regulator and the voltage division regulator according to the present invention all have the structure using the semiconductor, they have four poles as compared with the conventional voltage regulator having the structure using the quadrupole tube. Heaters for the operation of tubes,
Since it is not necessary to use auxiliary equipment such as control grid, screen grid, cooling device and power supply,
The structure is simple and the device can be small.

Examples will be shown below to describe the embodiments of the present invention in more detail. Of course, the present invention is not limited by the following examples.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 4 exemplifies a circuit configuration diagram of a voltage regulator and a voltage divider regulator according to an embodiment of the present invention. In the voltage regulator shown in FIG. 4, the transistor (1) is of the npn type, and the collector and the base of the npn type transistor (1) are connected by a Zener diode (2) to form the npn type transistor (1). A low voltage source is constituted by the Zener diode (2). In addition, FET (6) and Zener diode (7)
And the optical fiber cable (4) and the paired phototransistor (8) form a switch (3). Light as an on / off signal is input to the phototransistor (8) through the optical fiber cable (4), and the FET (6)
The Zener diode (2) is switched on and off via the gate of the. This makes it possible to adjust the voltage limited to the maximum Zener diode of the Zener diode (2). Further, in order to limit the current flowing through the transistor (1), a current limiting resistor (5) is connected to the collector or the emitter of the transistor (1).

Further, a plurality of such voltage adjusting devices of the present invention are connected in series in multiple stages as shown in FIG. 4 to form a voltage division adjusting device, and the voltage is adjusted by each voltage adjusting device. The divided voltage can be adjusted with high stability. Since such a voltage division adjusting device of the present invention uses the voltage adjusting device that can be controlled by the optical fiber cable, the device can be remotely controlled.

Even when the voltage regulator or voltage divider of the present invention is used for adjusting the voltage division of an extra high voltage, the maximum Zener diode (2) is included in the transistor (1) and the FET (6). Since only the voltage limited by the current flows, each element operates stably without being destroyed.

[0019]

As described above in detail, the device of the present invention eliminates the need for a quadrupole tube as in the conventional device.
With high stability, voltage adjustment or voltage division can be adjusted,
Therefore, it is possible to stably control the potential of the anode electrode of the gyrotron high-frequency oscillator or the klystron amplification tube.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a circuit configuration of a voltage adjusting device for an anode electrode of a conventional gyrotron.

FIG. 2 is a diagram illustrating a circuit configuration of the voltage regulator of the present invention.

FIG. 3 is a diagram exemplifying a circuit configuration of a voltage division regulator of the present invention.

FIG. 4 is a diagram illustrating a circuit configuration of a voltage regulator and a voltage divider regulator according to an embodiment of the present invention.

[Explanation of symbols]

 1 Transistor 2 Zener diode 3 Switch or low capacitance voltage device 4 Optical fiber cable 5 Current limiting resistor 6 FET 7 Zener diode 8 Phototransistor

Claims (4)

[Claims] 1. A voltage comprising a transistor, a Zener diode for connecting a collector and a base in a base circuit of the transistor, and a switch or a low capacitance voltage regulator for bypassing the Zener diode. Adjustment device. 2. The voltage regulator according to claim 1, wherein an optical fiber cable for sending a signal for turning on / off the switch or the low capacitance voltage regulator is connected to the switch or the low capacitance voltage regulator. Voltage regulator. 3. A voltage dividing voltage adjusting device, wherein the voltage adjusting device according to claim 1 is connected in series in multiple stages. 4. The voltage division regulator according to claim 3,
A voltage division regulator, wherein an optical fiber cable for transmitting a signal for turning on / off a switch or a low-capacity voltage regulator of each voltage regulator is connected to the switch or the low-capacity voltage regulator.