This circuit from a 1970s General Electric publication applies to motors of the series winding type. SCRs support current equivalents and must be equipped with heat sinks.
The load current can be adjusted up to about 1 A. The transistor can be TIP32 or TIP42. The...
With this step the motor is energized when the TTL or CMOS input is high. Motors up to 1 amp and...
The diodes on this power supply are 2.5 V x 1000 V. The circuit provides a very high voltage for...