Abstract: A high voltage pulse generator is disclosed. The high voltage pulse generator comprises a pulse generating transformer having a primary coil with a first side and a second side, and a secondary coil with a first side and a second side. A direct current (DC) voltage source connection is at the first side of the primary coil. A first high frequency power driver transistor is coupled between the second side of the primary coil and a ground connection. The first high frequency power driver transistor is configured to operate in an on-mode for a selected time period to charge the primary coil for the selected time period based on a switching frequency of the first high frequency power driver transistor, and switch the first high frequency power driver transistor to an off-mode at the switching frequency to release the charge from the primary coil to the secondary coil.

Abstract: A high voltage pulse generator is disclosed. The high voltage pulse generator comprises a pulse generating transformer having a primary coil with a first side and a second side, and a secondary coil with a first side and a second side. A direct current (DC) voltage source connection is at the first side of the primary coil. A first high frequency power driver transistor is coupled between the second side of the primary coil and a ground connection. The first high frequency power driver transistor is configured to operate in an on-mode for a selected time period to charge the primary coil for the selected time period based on a switching frequency of the first high frequency power driver transistor, and switch the first high frequency power driver transistor to an off-mode at the switching frequency to release the charge from the primary coil to the secondary coil.

Abstract: A plurality of parallel capacitors is constructed using an elongate common capacitor electrode with individual capacitors formed from individual capacitor electrodes spaced along and separated from the common electrode by a layer of dielectric material. The layer of dielectric material can be a dielectric film material or a ceramic material. The layer of dielectric material can be tapered along the common electrode, and/or additional dielectric material can be positioned between edges of adjacent individual electrodes. An individual electrode at one end of the common electrode can be made wider to increase its capacitance.

Abstract: A plurality of parallel capacitors is constructed using an elongate common capacitor electrode with individual capacitors formed from individual capacitor electrodes spaced along and separated from the common electrode by a layer of dielectric material. The layer of dielectric material can be a dielectric film material or a ceramic material. The layer of dielectric material can be tapered along the common electrode, and/or additional dielectric material can be positioned between edges of adjacent individual electrodes. An individual electrode at one end of the common electrode can be made wider to increase its capacitance.

Abstract: A high voltage power supply for use in small diameter spaces such as in oil well logging devices includes an AC voltage source which provides an AC voltage to a voltage multiplier circuit that converts the AC voltage to a high DC voltage. A parallel or combination parallel-series multiplication circuit is used, rather than a series multiplication circuit, to reduce the reverse voltage across each semiconductor rectifier in the multiplication circuit. A plurality of parallel capacitors is constructed using an elongate common capacitor electrode with individual capacitors formed from individual capacitor electrodes spaced along and separated from the common electrode by a layer of dielectric material. The layer of dielectric material can be tapered along the common electrode, and additional dielectric material can be positioned between edges of adjacent individual electrodes. A high voltage end individual electrode can be made wider to increase its capacitance.

Abstract: A high voltage power supply for use in small diameter spaces such as in oil well logging devices includes an AC voltage source which provides an AC voltage to a voltage multiplier circuit that converts the AC voltage to a high DC voltage. A parallel or combination parallel-series multiplication circuit is used, rather than a series multiplication circuit, to reduce the reverse voltage across each semiconductor rectifier in the multiplication circuit. A plurality of parallel capacitors is constructed using an elongate common capacitor electrode with individual capacitors formed from individual capacitor electrodes spaced along and separated from the common electrode by a layer of dielectric material. The layer of dielectric material can be tapered along the common electrode, and additional dielectric material can be positioned between edges of adjacent individual electrodes. A high voltage end individual electrode can be made wider to increase its capacitance.

Abstract: A high voltage power supply for use in small diameter spaces such as in oil well logging devices can include a voltage multiplier circuit that converts the AC voltage to a high DC voltage. The dielectric material can be tapered so as to increase the capacitance of each stage, especially for the lower voltage stages. An encasement of each electrode within a rolled up structure of a common AC or DC structure allows for an improved value of AC or DC capacitance (or both). The overlapping of each AC (or DC) electrode around the common AC (or DC) electrode in two or more increasing increments, or sections, minimizes the droop voltage regulation effects found in the high voltage power supply and allows for a more even distribution of voltage conversion per stage. By tapering the dielectric and/or graduating the capacitors in value, a higher efficiency design may be realized.

Abstract: A high voltage power supply for use in small diameter spaces such as in oil well logging devices includes an AC voltage source which provides an AC voltage to a voltage multiplier circuit that converts the AC voltage to a high DC voltage. A parallel or combination parallel-series multiplication circuit is used, rather than a series multiplication circuit, to reduce the reverse voltage across each semiconductor rectifier in the multiplication circuit. The lower reverse voltage reduces leakage currents allowing such circuits to operate at temperatures over 150 degrees C. A special construction of high voltage capacitors allows the power supply to fit small spaces. A piece of elongate conductive material, such as a metal cylinder, forms a common capacitor electrode and is coated with a high voltage dielectric. Separate individual capacitor electrodes are formed around the common electrode and dielectric.

Abstract: A high voltage power supply for use in small diameter spaces such as in oil well logging devices includes an AC voltage source and a voltage multiplier circuit. An inside set of parallel capacitors is constructed with an inside common capacitor electrode, an inside dielectric material around the outside of the inside common capacitor electrode, and individual inside capacitor electrodes formed of conductive material positioned around the outside of the inside dielectric material. An outside set of parallel capacitors is constructed with a hollow outside common capacitor electrode with a central internal hollow space, an outside dielectric material around the inside of the outside common capacitor electrode, and individual outside capacitor electrodes formed of conductive material positioned around the inside of the outside dielectric material. The inside set of parallel capacitors fits concentrically inside the outside set of parallel capacitors.

Abstract: A high voltage power supply for use in small diameter spaces such as in oil well logging devices includes an AC voltage source which provides an AC voltage to a voltage multiplier circuit that converts the AC voltage to a high DC voltage. A parallel or combination parallel-series multiplication circuit is used, rather than a series multiplication circuit, to reduce the reverse voltage across each semiconductor rectifier in the multiplication circuit. The lower reverse voltage reduces leakage currents allowing such circuits to operate at temperatures over 150 degrees C. A special construction of high voltage capacitors allows the power supply to fit small spaces. A piece of elongate conductive material, such as a metal cylinder, forms a common capacitor electrode and is coated with a high voltage dielectric. Separate individual capacitor electrodes are formed around the common electrode and dielectric.

Abstract: A high voltage power supply for use in small diameter spaces such as in oil well logging devices includes an AC voltage source and a voltage multiplier circuit. An inside set of parallel capacitors is constructed with an inside common capacitor electrode, an inside dielectric material around the outside of the inside common capacitor electrode, and individual inside capacitor electrodes formed of conductive material positioned around the outside of the inside dielectric material. An outside set of parallel capacitors is constructed with a hollow outside common capacitor electrode with a central internal hollow space, an outside dielectric material around the inside of the outside common capacitor electrode, and individual outside capacitor electrodes formed of conductive material positioned around the inside of the outside dielectric material. The inside set of parallel capacitors fits concentrically inside the outside set of parallel capacitors.

Abstract: Circuit arrangements and methods are disclosed for providing means of driving a grounded anode triode X-Ray tube using one isolation transformer, providing both filament power and controllable grid drive without the need for optical isolation devices. Applications of this design include fast X-Ray imaging such as inspection equipment and systems, which require rapid control of X-Ray intensity. Grounding the anode in X-Ray tube systems is usually done for thermal considerations and therefore requires that the filament and grid to be floating at an extremely large negative potential, usually over 100 kVDC. Isolation transformers are required to provide power to the filament and grid. In this invention, both AM and FM signals are coupled through one isolation transformer. The AM waveform provides controllable power to heat the filament while the FM signal, adjusted in magnitude by a filter arrangement, rectified and smoothed in waveform, provides power for the grid.

Abstract: Circuit arrangements and methods are disclosed for providing means of driving a grounded anode triode X-Ray tube using one isolation transformer, providing both filament power and controllable grid drive without the need for optical isolation devices. Applications. of this design include fast X-Ray imaging such as inspection equipment and systems, which require rapid control of X-Ray intensity. Grounding the anode in X-Ray tube systems is usually done for thermal considerations and therefore requires that the filament and grid to be floating at an extremely large negative potential, usually over 100 kVDC. Isolation transformers are-required to provide power to the filament and grid. In this invention, both AM and FM signals are coupled through one isolation transformer. The AM waveform provides controllable power to heat the filament while the FM signal, adjusted in magnitude by a filter arrangement, rectified and smoothed in waveform, provides power for the grid.

Abstract: Circuit arrangements and methods are disclosed for providing a source of low power DC, direct and isolated from the main AC line. Applications of this circuitry include battery chargers and air ionizers. In this design, a high frequency ferrite transformer 16 is driven by signals created from a bilaterally conducting two state device 12 operating in series with a capacitor 15. Utilizing a bilaterally conducting two state device 12, capacitor 15 is alternately charged positive and negative to a certain voltage level depending on the characteristics of 12. The device 12 will see an increasing voltage across it due to the increasing magnitude of the input AC waveform. When the voltage across 12 reaches the breakover voltage of the device, Vbo, it rapidly changes state from a blocking condition to one of full conduction.