It's hard to find a serious regulator/rectifier manufacturer that will offer a quality DIY series motorcycle regulator project. We are seriously considering offering a do-it-yourself nonprofit project for everyone.
The reason is that there really are no such projects. There are some schemes that can be found on the Internet. Their main disadvantages are that they are poorly designed to withstand critical situations, poor voltage retention, use of electrolytic capacitors, difficult accurate voltage adjustment, high idle current consumption, etc. The goal is promotion, but also on cooperation, which is what our civilization is based on. In addition, in this way we fight against the flood of bad and fake regulators from China.
The project they would offer is a simplified version of the series regulator we produced 17 years ago. It would have the following characteristics:
- voltage from the stator: up to 110VAC
- consumption current: less than 160uA (1.3Ah/year)
- regulated voltage from 13.8 to 14.8V adjustable
- output current of the regulator up to 10 to 30A
- insensitivity to increased battery voltage up to 100V
- start operation if the battery voltage is higher than approx. 9V
- regulation to minimum or medium voltage (two connection versions)
- temperature stability: -5mV/°C or -0.7mV/°C depending on the connection version
- LED signaling: flashing or normal (not required for operation)
- LED signaling of stator breakdown on the housing when the regulator is connected
- LED signaling of the reached voltage
- resistance to the exchange of plus and minus polarity
- surge protection for input AC voltage 180Vp
- single-phase or three-phase version up to 8000rpm
- without electrolytic capacitors
- without protection from overheating
- the control electronics must not be heated above 85°C
- a rectifier typically consisting of three diodes for plus and three thyristors for minus
- thyristors are mounted without insulation, and diodes should have insulation
- in the event of a stator breakdown on the housing, the output voltage will not be controlled! The LED will then light up when the controller is energized and the motor is not running.
Extras:
- the possibility of using an additional wire for voltage measurements and switching on - ignition
- the possibility that the Kontakt+ additional wire controls the quiet consumption, regardless of which wire it measures the voltage on
- the possibility of easy connection of the output for an external LED diode (additional small circuit)
- the possibility of adding a circuit for an NPN or PNP output for a lamp with a current limit that turns on when the generator does not provide enough voltage or when it does not reach the voltage
- possibility of NPN or PNP tacho output for single-phase or three-phase version
- the possibility of an NPN output that is active when the stator provides voltage (Motor run out)
- possibility of external voltage adjustment (external resistor or trimmer connected to ground) or measuring wire for minus
- option for LED diode in series with contact wire that includes a standard/impulse regulator
- additional regulator assembly with grounded stator and protections
The difference in the sold product:
- consumption current: less than 68uA (0.6Ah/year)
- protection from overheating above 70°C
- high temperature stability
- LED standard
- regulated voltage fixed setting
- high quality polyurethane sealed in a robust heat sink
- start of operation if the battery voltage is higher than 6.2V
- stator voltage: 100 or 200VAC
- max engine speed: up to and over 8000rpm
It is prohibited and punishable by law without the author's permission to commercially reproduce, make available to others, use the project or modify it for commercial use. For commercial use or modification of our scheme, it is necessary to agree on the terms of cooperation.
The project we offer for do-it-yourself is our simplified earlier product that has already been practically tested 17 years ago and hundreds of regulators with an almost identical scheme have been sold. I believe that in many features it surpasses other professional replacement regulators. If you are really interested in a quality DIY series type regulator for charging a motorcycle, please contact me by e-mail with the subject "Best series DIY regulator/rectifier" and write what you think about the project? Would you be interested in the complete project (explanation of operation, schematic, control circuit board plan, possible modifications in application, assembly notes) remaining available for non-commercial use but for an affordable fee (20-30€). Additional circuit diagrams may also be available for an affordable fee. (e.g. typically €4 each or all together for €30). At the same time, we will not offer and provide an upgrade of the DIY project to the features of our commercial product. There is also the possibility of selling a kit that does not include a heat sink, potting compound, wires and power semiconductors that you optimally choose according to the application.
Of course, we are open to a one-time fee for non-exclusive use of our other projects for commercial purposes by agreement. For a slightly higher price, we could also offer DIY projects for other DIY regulators or even a collection of DIY projects. If there is a lot of interest via email, I will open a topic for discussion on our free forum.
DIY regulation electronics are usable for several types of stators: single-phase, three-phase and double single-phase (3 wires, one common) and stator voltages up to 110VAC.
DIY regulator, with a suitable heat sink and good moisture insulation, could be a good and safe replacement for the currently overpriced and hard-to-find Shindengen SH775. With the flood of fake Chinese copies, a DIY regulator of a good project seems like a winning combination. The quality and reliability of the regulator is literally in your hands. There are no unexpected surprises.
Used parts are easily found at electronic component suppliers. You can choose diodes and thyristors yourself (max 30mA gate trigger current). You only need to take care that the resistance of the thyristor to dU/dt should be 1000V/us.
⦁ Advantages of the series regulator
⦁ Comparison of 3F HVSP regulator with Shindengen SH847
⦁ What to do when the voltage regulator on a motorcycle often burns out?
⦁ What to do when the stator on a motorcycle often burns out?
⦁ Control of the charging voltage of the 12V battery
⦁ Instructions for a quick solution to too low battery voltage
Control board layout
Warning: output voltage over 25V is dangerous for this simple regulator/rectifier above.