At a glance
- Power supply for turntables with synchronous motors
- quartz stabilized sine wave generation using DDS
- variable phase shift
- extremely flexible
- higher startup voltage for the motor possible
- trough-hole components, easy to solder
- open source software
SinCos is a microprocessor controlled power supply for turntables with a synchronous motor. Often the mains supply is used with a capacitor that shifts the phase between the two motor coils by about 90 degrees (in reality it will be always <90 degree).
SinCos comes with the following features:
- Sine/Cosine wave: Generation of two sine-wave signals with the same frequency independent of mains frequency.
- Variable phase shift (0-360°): Some motors are reported to work best with a phase shift that is not exactly 90°. You can simply try different phase shifts and check what works best with your specific motor.
- Phase shift increment: Phase shift can be set in 0.2° increments.
- Speed monitoring: Monitoring of the speed of the turntable by using a reflex photo sensor
- Soft start: frequency will ramp up from 0 hertz to the target speed in a predefined time. This helps if your motor has a low torque
- Power start: In addition to the soft start you can use a higher voltage when starting the motor. Using this feature you can limit the voltage during normal operation and reduce vibration noise.
- Automatic shutdown: After a predefined time, power supply turns off automatically.
- LCD display: an optional LCD display informs
- PC interface: the controller can be connected to the PC by a serial interface to change settings or read speed monitoring data
- Open source software: All software is open source. You can modify it if you like.
Software
- SinCos software (including EEPROM contents and fuse settings)
More information
- Controller – circuit diagram
- Controller – board layout
- MegaPower DP – circuit diagram
- MegaPower DP – circuit diagram
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How can I get one of yours SinCos – a turntable power supply
Hi, you can order the PCBs in our shop: http://www.crazy-audio.com/product/sincos-set-controller-dual-power-stage/
When will the PCB’s be back in stock?
Hi, where can I find the source code for the SinCos software? The link “SinCos software” leads only to the hex files.
Can you provide a link to the source code (this is open source, isn’t it?)?
Existing link only provides hex files.
Hi, you can order the PCBs in our shop: http://www.crazy-audio.com/product/sincos-set-controller-dual-power-stage/
Reply ↓
When will it be available again?
When would the kit be available again?
There are no plans to offer this kit again.
Good Morning, there is a possibility to get the PCB CAD files for both Controller and MegaPower? also a Circuit diagram with input, output ports ? Thank you in advance