1pc Sigma11 Fully Discrete Regulated Power Supply (Single Rail 5-36VDC)PCB Board

Description: 1pc Sigma11 Fully Discrete Regulated Power Supply (Single Rail 5-36VDC) PCB Board Tech highlights： All-discrete topology Single-pass, series regulator design. No IC (integrated circuits) are used. Low noise, high PSRR A constant-current source feeds a zener diode as a stable voltage reference. A low-pass filter (with a corner frequency of 1.6Hz) prevents zener noise from being introduced into the error amplifier. This is an effective yet lower-cost alternative to expensive voltage reference ICs. The low-pass filter also provides a soft-start characteristic. The error amplifier is a discrete implementation of an opamp with a high open-loop gain of 102.5dB. The voltage supply to the error amplifier is isolated with capacitance multipliers to boost its PSRR (power supply rejection ratio). This greatly improves the line regulation performance of the PSU. A long-tailed pair differential amplifier with current mirror and constant current source forms the first stage of the error amplifier. The second stage is the voltage amplification stage (VAS), also with constant current source load. The 3rd stage is comprised of the power MOSFET output devices configured as a source follower. High-current MOSFET pass transistors The high current rating provides a very high safety headroom against overcurrent damage. Onboard heatsinks can be used which would allow the σ11 to supply up to 0.3A continuous (with much higher peak currents-2A). More sustained currents are possible by using larger, offboard heatsinks-2A The negative temperature coefficient of MOSFETs prevents damaging thermal-runaway conditions that may plague conventional BJT devices. Typical output voltages are 5V, 9V, 10V, 12V, 15V, 18V, 24V, 27V, 30V or 36V. If you need other voltages, please contact us. Do not short the output terminal to discharge capacitor, otherwise it will damage the power board. Typical Application Input voltage VAC= (Output voltage +8)/1.414 For example: 12VDC-OUT, Input voltage VAC=（12+8)/1.414=14.14VAC, Please choose 15VAC； 5VDC-OUT 9VAC-IN 9VDC-OUT 12VAC-IN 12VDC-OUT 15VAC-IN 15VDC-OUT 18VAC-IN 18VDC-OUT 18VAC-IN 24VDC-OUT 22-24VAC-IN 30VDC-OUT 26-28VAC-IN 36VDC-OUT 32VAC-IN Paket: 1pc Sigma11 Fully Discrete Regulated Power Supply (Single Rail 5-36VDC)PCB Board

Price: 9.4 USD

Location: wuhan

End Time: 2025-01-30T09:21:01.000Z

Shipping Cost: 0 USD