Titanium pump planning method under the condition of high voltage power supply

titanium pump planning method under the condition of high voltage power supply

titanium pump is a new type of water pump, introduces a kind of current general titanium water pump used in titanium ion pump vacuum adhere to the system of small, high voltage DC - AC switching power supply. High voltage switch power supply to choose the feedback of the push-pull type structure, high voltage power supply has been developed by titanium pump used in electrostatic suspended inertia in appearance, with low power consumption, small volume, wide operation temperature planning etc. Characteristics.

electrostatic bearings use titanium ion pump to insist on rotor Electrode ball cavity has not less than 10 - Pa 6 ultra high vacuum degree, titanium pump operation demand external supply up to several thousands of volts dc high voltage. The function of high voltage power supply directly affects the bearing ball cavity vacuum whether can reach the requirements. Therefore, developing a small volume, light weight, low power consumption, high reliability of titanium water pump high voltage power supply has the very high value of engineering application.

titanium pump power demand press on inertial appearance due to the internal, and therefore requires its small volume, light weight, this is the circuit structure of the power supply, the insulation of the parts and heat dissipation problems put forward higher requirements. In the selection of transformer core, as well as the components of the power and operating temperature under the condition of the volume as small as possible to meet the requirements. Therefore, reduce the volume of a titanium pump power supply will be one of the difficulties in the development of the profession. High voltage transformer is the core component of high voltage power supply.

in the high voltage transformer, due to the number of turns more, especially secondary turns up to thousands of turn, when the transformer operating frequency and voltage change rate is bigger, it is necessary to consider the leakage inductance of the transformer distributed capacitance and question. Transformer leakage inductance and distributed capacitance constitutes the series resonance circuit, this virtually increases the demand for transformer insulation. In addition, titanium pump power demand has a wide operation temperature programming, the frequency of switching power supply, high voltage insulation, components selection, etc. Also need to consider factors.

there because of the high voltage transformer resonance peak larger series resonance, make the switching frequency of power supply has a great influence on temperature stability, for the high voltage power supply has a wide operation temperature planning, demand reasonable selection switch frequency. In addition, in order to realize the miniaturization of high voltage power supply and demand in the transformer, circuit boards, power shell, potting process planning and process adopted methods, such as to meet the insulation function, titanium pump to ensure the reliability of high voltage power supply for a long time operation.