Jules Ryckebusch
UNITED STATES OF AMERICA • + Follow
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Description
Hex Inverter Voltage Multiplier for Condenser Microphones
This is a HEX CMOS inverter based voltage multiplier. It is used for condenser microphone biasing. It takes 12VDC in and turns it into up to 80VDC. For 60VDC, omit the last capacitor C3. The Hex Inverter needs to run off off 12 Volts or above. And it needs to be a schmitt trigger type. The schematic has a MC33761 shown in it, that is not required and can be bypassed. Also the trim pot is jumpered as well. You can use these if needed for other voltages. I did not. Here is the build video for microphones
using this:
Jan 30,2021
8,440 views
Hex Inverter Voltage Multiplier for Condenser Microphones
This is a solid state, Hex Inverter voltage multiplier to supply bias voltage to Condenser Microphone Capsules.
8440
25
14
8.13 (4)
Published: Jan 30,2021
BOM(Bill of materials)
PCBWay Donate 10% cost To Author
File Last Updated: 2024/04/12 (GMT+8)
File update record
2024-04-1219:02:31
Parts List (BOM) is updated.
2023-03-1820:36:27
Parts List (BOM) is updated.
Only PCB
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Hex Inverter Voltage Multiplier for Condenser Microphones
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-
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