While shielded cables are effective for noise suppression in DC power supplies, their inherent parasitic capacitance presents significant challenges in high-frequency and high-voltage applications.
In high-voltage amplifiers, this capacitance causes reactive current to flow between the core and the shield. At high frequencies, this leads to substantial power loss and excessive heat generation. Furthermore, the added capacitance acts as a low-pass filter, which can induce phase shifts and severely limit the amplifier's slew rate and upper bandwidth.
To maintain the high precision and high-speed performance of Matsusada Precision amplifiers, unshielded cables are utilized to ensure optimal signal integrity and efficiency.
FAQs
Why do high-voltage amplifiers use unshielded output cables?
- Category
- Power Supply Usage FAQs