Raspberry Pi Power Filter Board SKU: CQRPF00A, CQRPF00B, CQRPF00C
Description
Power filter is a filter circuit composed of capacitors, inductors and resistors, also known as "power EMI filter", or "EMI power filter", a passive bidirectional network, one end of which is the power supply and the other end is the load . The principle of the power filter is a kind of impedance adaptation network: the greater the impedance adaptation between the input and output sides of the power filter and the power supply and load sides, the more effective the attenuation of electromagnetic interference.
This Raspberry Pi Power Filter Board integrates multiple solid capacitors, ceramic capacitors and tantalum capacitors to perform parallel hybrid filtering.
It can filter low-mid-high frequency power noise in the power supply, which provides the whole system with a stabler power supply and makes sound quality purer.
Meantime, the board can also effectively protect your Raspberry Pi main-controller so as to to extend its service life.
Funcition
The Raspberry Pi power purification board uses Japanese original nichicon (Nichicon) solid capacitors, Samsung X7R ceramic capacitors and AVX (Kemei) tantalum capacitor for multiple groups of parallel hybrid filtering, which can filter out medium, high, and low frequency power noise in the power supply. The power supply of the whole system is more stable and the sound quality is purer.
Solid State / Ceramics / Tantalum Electrolytic Capacitor Hybrid Filtering:
- Japanese original nichicon (Nichicon) solid capacitors: Nichicon's low frequency filter is stronger;
- Samsung X7R Ceramic Capacitors: Ceramic capacitors filter out high frequencies;
- AVX (KEMET) Tantalum Capacitor: tantalum capacitor sound very sweet.
Small motherboard with big "energy"
The smaller the value of ESL and ESR of the capacitor under the same capacity, the stronger the filtering ability of the capacitor. Multiple capacitors can be connected in parallel to make the capacity larger. At the same time, the ESL and ESR become 1/N of a single capacitor, and the filtering ability becomes more powerful. Therefore, in the audio system, multiple small-capacity capacitors are used to form a large-capacit
The Raspberry Pi Power Filter Expansion Board is available in three versions:
- TThe First: CQRPF00A-5526μF version;
- The second: CQRPF00B-5976μF version;
- The third type: CQRPF00C-7596μF version.
