Power supply system used for silicon photomultiplier of PET system
A technology of silicon photomultiplier tube and power supply system, applied in the field of electronics, can solve the problems of inability to guarantee the temperature of SIPM detectors, increase system cost and complicated procedures, reduce system accuracy, etc., achieve high resolution, ensure gain, improve The effect of image quality
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Embodiment 1
[0043] The embodiment of this application provides a power supply system for silicon photomultiplier tubes applied to PET systems, please refer to figure 1 , the power supply system of the silicon photomultiplier tube applied to the PET system mainly includes the following modules:
[0044] Data processing module 101, voltage monitoring module 102 (optional module), temperature monitoring module 103, control module 104, pressure supply chip 105;
[0045] The load of the power supply system is a silicon photomultiplier tube SIPM module;
[0046] The data processing module 101 is respectively connected with the voltage monitoring module 102, the temperature monitoring module 103, the control module 104 and the pressure supply chip 105;
[0047] Exemplarily, the data processing module is connected to the pressure supply chip through an integrated circuit bus (Inter-Integrated Circuit, IIC) and a serial peripheral interface (Serial Peripheral Interface, SPI);
[0048] The data p...
Embodiment 2
[0063] In order to more intuitively understand the power supply system of the silicon photomultiplier tube applied to the PET system in this application, the embodiment of this application is an application example, specifically:
[0064] A data processing module 101 , a voltage monitoring module 102 , a temperature monitoring module 103 , a control module 104 , and a pressure supply chip 105 .
[0065] Further, the power supply system further includes: an anti-reverse connection protection unit; the anti-reverse connection protection unit is arranged between the power supply chip and the load.
[0066] see figure 2 , the anti-reverse connection protection unit includes: a DC power supply terminal, a field effect transistor Q3 (eg, IRFR4620), a PNP transistor Q5 (eg, MMBT3904), a TVS diode D4 (eg, SM8S40A), a TVS diode D3, High-speed switching diode D5 (eg, IRFR4620), resistor R40 and resistor R3);
[0067] Exemplarily, the DC power supply terminal may be a 24V DC power sup...
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