Signal Consulting, LLC 

 Model Si5HyUdMC2-50V-2x16A

Dual, Hybrid, 50V-2x16A Unidirectional Motor Controller with Integrated Heat Sink and with 5kHz or 20kHz PWM, T-Chip





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 Si5HyUdMC2-50V-2x16A Features:
Power Semiconductors: Two 60A MOSFETs
Max. Continuous Current: 16A each, with Heat Sink shown.
Max. Current for 5sec: 40A  each, with  Heat-Sinks shown.
Overall Dimensions: 2.4" x 2.3" x 2.2" (61 x 58 x56mm).
Components Type: 100% Solid State, NO Relays

  Two DC Inductive Loads  are controlled simultaneously and independently by two Pulse Width Modulators (PWM).

 PWM carrier frequency is  user selectable with a jumper, 20kHz when the jumper is open and 5kHz when closed.

  Two Load-Voltages are adjustable from 0V to 50V in .42V steps   ( or max. value of Vp) with  two analog control signals or with two internal or external potentiometers.

  User can choose between both slow or both fast load-current acceleration/deceleration modes.

  High Power-Efficiency: 98.5% typical, at 50V and 16A

On Board:
Filter Capacitors
VTS diodes
Snubber Circuit Ready
Voltage Requirement:
A single DC Source Voltage (unregulated ) with any voltage value from 9V to 50V (for Vp)


   For Details, Download the  Si5HyUdMC2-50V-2x16A-6T5   Manual


The Si5HyMC2-50V-2x16A  is a microprocessor based, Dual, 50V at 2x16A Unidirectional Motor-Controller with an integrated heat sink. This board uses two independent pulse-width modulators (PWM) to efficiently control the power-transfer for two inductive  loads, each in the 0 to 800W power range with 6.6W steps. An onboard microprocessor generates two 5kHz or 20kHz PWM carrier signals, controls the load-current to each load  and controls the current buildup and decay rate  of each load. The PWM carrier frequency is user selectable by the jumper CN3, 20kHz when CN3 is open and 5kHz when short. The high frequency PWM rate provides a smooth current control to each load and insures a flicker-free load environment. As the name hybrid (Hy) implies, the desired load currents (or PWM pulse-durations) are set by two variable (0 to +5V) analog input-voltages VI1,G and VI2,G  each providing a smooth current control from 0 to 100% in 0.83% steps; while the other control-signals are digital. These analog inputs (VI1,G and VI2,G) are zener-diode protected and each includes an integrator with a time-constant of 0.01s; accordingly, each input can be driven with DC or PWM signals. The user can choose between both slow or both fast load-current acceleration/deceleration modes by short-circuiting or open-circuiting the pins labeled J1.  The slow mode, with rise-time/fall-time of 0.5s, is selected by short-circuit (J1 jumper installed); while the fast mode, with rise-time/fall-time of 0.025s, is selected by leaving these pins open (no Jumper installed). Two onboard LEDs (red) are used to monitor the load-voltages. Two sets of snubbing circuits and filter capacitors (one for each load) are included to suppress load-current switching transients. A small (2.3”x2.4”x0.95”) finned  integrated heat sink is included with mounting hardware (as shown on the photograph) to operate at 2x16A or 1600W power levels. Higher power-levels (50V, 2x20A or 2000W) can be achieved with more efficient heat-sinks. This board requires a single 9V to 50V DC power source (unregulated ) at a 0A to 32A current range to operate normally. Typical applications are: Dual DC Motor-Speed Controller, Dual Light-Dimmer with variable delay, Dual Power Amplifier, Dual SPST Solid State Relay, etc. This board can be configured and programmed to perform efficiently in many customized applications.

 A Typical Application of the Si5HyUdMC2-50V-2x16A

In this application, two motor speeds (or PWM pulse-durations) are independently and linearly adjusted by the analog inputs VI1,G and VI2,G (via, two 5KOhm Linear tapered pots,SiPot2-2x5K) efficiently controlling the power to each DC motor (or load) in the 0 to 800W range in 6.6W steps. The DC Motor can be purchased from Bodine, ; or from other vendors, An inexpensive, unregulated DC power supply design is shown in this application drawing. This power supply consists of a transformer, a 40A bridge rectifier and a C=2200uF, 50V capacitor. The secondary voltage and current rating of the transformer determines the DC voltage and current output of this power supply. Low-current output transformers can be purchased from with the fallowing part numbers: for 33V, 10A DC output use transformer 7846-TR; for 16V, 4A DC output use transformer 7840-TR.  A wide variety of linear and switching power supplies can also be used with this board. Consult the most recent catalog on to purchase these power supplies. Warning:  The connecting wires to the Motor and the Power Supply must be heavy gauge copper wire (#12 AWG or heavier) to handle the rated current level. In addition, these heavy gauge wires act as a heat sink, protecting the board from overheating.

Si5HyUdMC2-50V-2x16A , Dual Hybrid Unidirectional Motor Controller with heat sink, 2 DC Loads at 50V, 2x16A
Price $179.00

Note: If Buying the Si5HyUdMC2-50V-2x16A, it is recommended to buy one Si5Pot2-2x5k two linear Potentiometers.

Si5Pot2-2x5k  Two 1-Turn, Linear Taper, 5kW Potentiometers.
Price $25.00

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Availability: We usually ship in 2-3 business days.



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