ZEROZONE Assembled Series voltage regulator board for preamp /DACheadphone amp L7-7 | Home Theater Amplifiers

ZEROZONE Assembled Series voltage regulator board for preamp /DACheadphone amp L7-7 | Home Theater

Brand NameGZLOZONEModel NumberL7-7OriginMainland ChinaCertificationNONEPackageYesMaximum Power Per Channel65WMeasurement unitpiece/piecesEach pack1

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• Danil A.20 May 2022
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Description

PCB Size: 126*76mm height about 48mm Output voltage has following kind for choose: 1: +/-12V  ( input voltage recommned Dual AC12-15V  4 lines) 2:+/-15V   ( input voltage recommned Dual AC15-18V  4 lines) 3:+/-18V   ( input voltage recommned Dual AC18-24V  4 lines) 4:+/-20V   ( input voltage recommned Dual AC18-24V  4 lines) 5:+/-24V   ( input voltage recommned Dual AC22-26V  4 lines) 6:+/-28V   ( input voltage recommned Dual AC26-30V  4 lines) 7:+/-32V   ( input voltage recommned Dual AC26-30V  4 lines) 8:+/-36V   ( input voltage recommned Dual AC30-34V  4 lines)     All discrete component structure, single-stage series voltage regulator design. Without ic use, the entire design can regulate each node of the control loop so that all the performance parameters of the voltage regulator can reach the best state. Complementary regulator structure, the negative regulator part is the complementary mirror image of the positive regulator. Ultra-low noise, high PSRR (power ripple rejection ratio). The low-pass filter's inflection point frequency as low as 1.6Hz prevents diode switching noise from entering the subsequent error amplifier, and this part also has a soft-start function. Effectively guarantees the output noise of the regulated power supply as low as μV Level.    Note: this board only suitable for low current board. such as preamp board. DAC board. headphone amp board etc. are not suitable for high current power amp. This board using 2pcs original Japan Nichicon 10000UF 50V Capacitors Package include:   Assembeld HP-1 Power supply board     X 1                       we can provide PDF schematic via email.