X-ray imaging systems are advanced medical imaging examination technology. In an X-ray imaging system, power supply design is a key factor to ensure the normal operation of the entire system, which mainly includes the following key components and their functions:
Block Diagram of Power Supply System for X-ray Imaging System
1. HV Generator (High-Voltage Generator)
Function: Its main role is to convert the input AC power (such as 380Vac or 480Vac commonly used) into high-voltage DC up to ~150KV DC through a series of conversion processes such as rectification (Rectifier) and AC-DC-DC, so as to provide the required high voltage for the X-Ray tube. Under the action of high voltage, electrons in the X-ray tube are accelerated to hit the anode target surface, thereby generating X-rays.
2. Auxiliary power (Auxiliary Power Supply)
Function: The auxiliary power supply is responsible for providing appropriate power for other non-high-voltage components in the system. It can convert the input 220Vac AC power into various different voltage levels such as 24V/10V, 15V, 5V, etc., through circuit topologies such as AC-DC (flyback) and AC-AC (half-bridge), so as to supply power for other components like the DSP Controller (Digital Signal Processor Controller).
3. DSP Controller (Digital Signal Processor Controller)
Function: It is the control core of the entire power supply system. It receives instructions and feedback signals from the Interface (interface module) and performs real-time monitoring and control on the high-voltage generator and auxiliary power supply to ensure the stability of the output power supply and meet the needs of system operation. For example, it can accurately adjust the high voltage output by the high-voltage generator according to imaging needs.
4. Interface (Interface Module)
Function: It provides a variety of interface methods, such as USB, RS232, LAN, etc., to facilitate user interaction with the system. At the same time, it can receive input instructions from the Key & Button (keys and buttons) and transmit these instructions to the DSP Controller to realize the operation and control of the system.
Frequently Asked Questions:
Q: What are the testing standards for the safety of medical equipment?
A: It depends on the sales region, mainly including FDA in the United States, CE in the European Union, and national standards in China.
More Littelfuse circuit protection products:
Littelfuse circuit protection products, with their excellent performance, provide stable and reliable signal transmission guarantees for medical electronic equipment.
- Fuses
- Electrical special fuses
- PTC resettable fuses
- Gas Discharge Tubes (GDT)
- Varistors, MOV
- Circuit breakers
More information about Littelfuse medical product safety design:
- Littelfuse Medical Product Safety Design: Defibrillator (AED)
- Littelfuse Medical Product Safety Design: X - ray Imaging System Power Supply System
- Littelfuse Medical Product Safety Design: Ultrasonic Scalpel System
- Littelfuse Medical Product Safety Design: Intravascular Pulsed Decalcification Instrument
- Littelfuse Medical Product Safety Design: Pulsed Field Ablation (PFA)
- Littelfuse Medical Product Safety Design: Ventilator System
- Littelfuse Medical Product Safety Design: Ultrasonic Scanning Equipment