Grid modulator
A grid and voltage regulation control technology, which is applied to X-ray equipment, electrical components, etc., can solve the problems of inconvenient realization of voltage transformation, the limitation of grid modulation module volume, and the inability to be large, and achieves simple structure and clear logic. , the effect of preventing the flow of charge
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[0019] The invention is developed aiming at the working characteristics of the medical bulb grid system. The grid of the medical bulb is composed of two grid plates. The reference source of the grid voltage is the cathode of the bulb. When working, the required voltage is added to the grid to form a deflection electric field. This voltage can be a DC voltage or a square wave voltage. The working characteristics of the grid modulation device are high voltage, low current, and low power, and meet the power requirements as much as possible while reducing the module volume. The present invention is based on the requirement of using a PWM modulation method to control a wider voltage output range. The voltage range of the cathode of the reference bulb is 0-3000V, and the output frequency of the square wave voltage is 0-3000HZ. The driving requirements of the full range are realized by driving the pulse generation circuit, and the insulation requirements of the low-voltage part and ...
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