Power Supply Device for Triple Quadrupole Mass Spectrometer

A power supply device for a triple quadrupole mass spectrometer, comprising a power input module, a sequence generator, and an output control module, wherein

• the power input module, having a voltage input terminal and a voltage output terminal, comprises an energy storage circuit, wherein the voltage input terminal is connected to a power supply, and is configured for receiving of an input voltage from the power supply;
• the energy storage circuit is connected to the power supply through the voltage input terminal;
• and the energy storage circuit is connected to the sequence generator and the output control module through the voltage output terminal, so as to output the input voltage from the power supply through the voltage output terminal;
• the sequence generator, having a single voltage input terminal, an auxiliary voltage output terminal and a relay signal output terminal, comprises a transformer circuit and a relay signal circuit, wherein the single voltage input terminal is connected to a positive polarity of the voltage output terminal;
• the transformer circuit is connected to the single voltage input terminal and is configured to convert a positive voltage from the voltage output terminal into an auxiliary voltage lower than the positive voltage from the voltage output terminal, and the transformer circuit is connected to the auxiliary voltage output terminal to output the auxiliary voltage through the auxiliary voltage output terminal;
• and the relay signal circuit is connected to the auxiliary voltage output terminal and is configured to convert the auxiliary voltage into a relay signal, and the relay signal circuit is connected to the relay signal output terminal to output the relay signal through the relay signal output terminal;
• and
• the output control module, having a primary voltage input terminal, an auxiliary voltage input terminal, a relay signal input terminal and a total voltage output terminal, comprises a relay control circuit, wherein the primary voltage input terminal is connected to the voltage output terminal;
• the auxiliary voltage input terminal is connected to the auxiliary voltage output terminal;
• the relay signal input terminal is connected to the relay signal output terminal;
• and the relay control circuit is connected to the relay signal input terminal to control on and off of the relay control circuit according to the relay signal, is connected to the auxiliary voltage input terminal to enable the auxiliary voltage to supply power to the relay control circuit, and is connected to the primary voltage input terminal and the total voltage output terminal to output the input voltage from the power supply,
• wherein the relay control circuit comprises a relay, a third diode, and a second metal-oxide semiconductor field-effect transistor, wherein the relay is connected in series to the second metal-oxide semiconductor field-effect transistor, the third diode is connected in parallel to the relay, the relay is connected in series to the primary voltage input terminal and the auxiliary voltage input terminal, the second metal-oxide semiconductor field-effect transistor is connected in series to the relay signal input terminal, and the relay is connected in series to the total voltage output terminal,
• wherein the relay control circuit further comprises a second fuse and a fourth diode, wherein the second fuse is connected in parallel to the fourth diode, and the second fuse is connected in series between the relay and the total voltage output terminal, and
• wherein the relay control circuit further comprises a filter circuit comprising a second common-mode inductor, a fourth capacitor, a fifth capacitor, a filter resistor, and a triode, wherein the filter resistor is connected in parallel to the fourth capacitor, the second common-mode inductor is connected in series to the second fuse, the second common-mode inductor is connected in parallel to the fourth capacitor, a collector of the triode is connected to the second common-mode inductor, a base and the collector of the triode are connected to the total voltage output terminal, and the fifth capacitor is connected in series between the base of the triode and the total voltage output terminal.