Your Reliable Motor Driver PCB Manufacturer

Your Best Motor Driver PCB Supplier

If you’re about to find the best motor driver PCB manufacturer for your project or business needs, PCBMay, operating in China, is your go-to source. We can help you find a suitable motor driver PCB to support your business.

For over a decade, PCBMay has been manufacturing motor driver PCBs with outstanding performance. Our company is well-equipped and highly integrated with protection circuitry that allows us to produce the best-suited products.

Our design engineers manufacture the best motor driver PCBs to achieve a high-performance solution for your applications. It optimizes efficiency, reduces thermal stress, and minimizes noise.

PCBMay motor drive PCBs are famous for their lighter design and compact size, making them ideal in automotive, consumer electronics, aerospace, and more. As your leading motor driver PCB manufacturer, we can supply different industries with high-quality motor driver PCB from simple to complex applications.

As one of China’s top manufacturers and suppliers, we will provide innovative motor driver PCBs to worldwide customers. PCBMay keeps on launching new motor driver PCB technology to fill the needs of every market.

Our team has rich manufacturing experience in PCB manufacturing and PCB assembly. Whether you’re creating an electronic hardware product or developing your first PCB, we can help you build your hardware faster and easier.

PCBMay is manufacturing motor driver PCB with our two main guidelines – quality and consistent improvement. Our modern PCB equipment enables us to provide high-precision motor driver PCB suitable for military, aerospace, industrial, and medical applications.

As your best motor driver PCB manufacturer and supplier, we continue to invest the advanced equipment and top-level base materials for automated manufacturing lines. It allows PCBMay to offer you a high throughput motor driver PCB with high quality.

More than thousands of customers trust PCBMay motor driver PCBs. You can trust our team too. Be one of our satisfied clients! Make PCBMay your reliable motor driver PCB manufacturer to support your business.

Contact us today!

Motor Driver PCB: The Ultimate FAQ Guide

Are you looking for the best solution to control motors in embedded circuits?

Motor driver PCB will be the most perfect choice for you. It controls the movement of the motor concerning the controller’s requirement. Its massive advantages make it a reliable alternative to microcontrollers.

PCBMay manufactures motor driver PCB with great efficiency. Do you know about the assembly, use, benefits, and limitations of this PCB? Don’t worry.  We are here to inform you everything about this reliable PCB through this FAQ guide.

Let’s start.

What Is A Motor Driver PCB?

Motor driver PCB is an effective circuit to control a motor. It makes a bridge between the microcontroller circuits and motors. Motor driver PCB receives the low current signal from the microcontrollers. Then turn it into a high current signal.

Since you have to supply a high current to run motors, motor driver PCB does the real task. It also regulates the dynamics of the motor. You can see a couple of voltage pins in it.

Figure 1_ Motor Driver PCB

These two pins are used in starting the motor driver PCB and delivering the high voltage to the motor. In commercial robotics, this is the most widely used circuit.

An easy operation, low loss, and impressive functionality promote the reliability of this PCB.

What Are Motor Driver PCB Materials?

Motor driver PCB consists of top-quality materials. These materials are usually hydrocarbon, which is incorporated with glass or ceramics. PTFE is used here.

Motor Driver PCB Materials

FR-4 materials can’t render effective thermal conductivity. That’s why copper and aluminum are widely used in this PCB.

What Are The Key Features Of Motor Driver PCB?

Impressive features are the key factor of a motor driver PCB to be compatible with numerous applications. Such as:

• Low dielectric constant (below 4)
• High decomposition temperature (more than 400⁰C)
• Maximum output current
• Commendable heat dissipation rate
• High glass transition temperature (more than 280⁰C)
• High supply voltage

Motor Driver PCB With Impressive Features

Where Is Motor Driver PCB Used?

Motor driver PCB has brought out a  new dimension in the following applications:

• Autonomous robotics
• Electric vehicles
• Relay
• Industrial sectors
• Stepper motors
• LED lightings
• Navigation
• Solenoid switching
• Aerospace technology
• Defense sectors

Effective Motor Driver PCB

What Are The Advantages Of Motor Driver PCB?

Motor driver PCB is the leading option for the designers of motor-driven circuits. It has gained this mounting credibility due to its numerous benefits. Here, some notable advantages are explained for you.

Long Lifespan

It consists of highly durable materials. Here, the components have impressive resistance against friction. That’s why this PCB can tolerate immense mechanical and thermal stress which results in a long lifespan.

Cost-effective

You can experience the outstanding performance of this PCB at a competitive price. It enables the circuit designer to make a useful placement of components due to the constant electric and magnetic current supply.

Again, there is no significant use of position feedback in it. These properties decrease the manufacturing cost.

Flexibility

It is flexible to use in versatile applications. It renders a consistent rotational force for a long time. The stepper motor does not require the motor power to deliver holding torque. This property promotes its large-scale applications.

It has a simple procedure to operate. It provides excellent performance at low speed. It offers a synchronous speed which enables it to perform with a heavy load.

Flexible Motor Driver PCB

Again, you can incorporate the automated function of the PCB. Then it will stop working if anything wrong happens.

Low Loss Operation

It can function in both clockwise and anti-clockwise directions without causing the voltage drop. It utilizes capacitors to do this. That’s why it provides a low loss benefit.

Reliable  

This PCB delivers impressive reliability in robotics design. Its high mechanical stress tolerance makes it compatible in this industry. This feature allows you to apply it in high-load projects.

These are the most significant benefits of this PCB. It will lessen the problems in controlling PCB motors.

What Is The Best Trace Width Of Motor Driver PCB?

Usually, wider trace width is more preferable to motor driver PCB. You can apply traces more than 2 cm in width in most PCB projects. Here, a formula to calculate the trace width for you.

Trace width, w=mils

Where, A= cross-sectional area of trace, T= thickness.

Motor Driver PCB Trace Width

Trace width is related to the ability to carry current. So, you need to consider this factor sincerely.

What Are The Considerations To Use Thermal Vias In Motor Driver PCB?

In motor driver PCB, thermal vias help to dissipate heat from the PCB surface. That’s why you have to keep some considerations in mind while using thermal vias.

• You should not allow thermal relief connections with thermal vias. These joints obstruct the flow of heat through the thermal vias.
• You should avoid covering thermal vias by using a solder mask. This mask promotes voiding in the PCB.
• Thermal via size should be perfect to prevent solder wicking. 8 mil hole size and around 20 mil diameter are the suitable dimensions of thermal vias in it.
• You have to place group thermal vias to avoid thermal resistance.

Motor Driver PCB Thermal Vias

You can enjoy the maximum thermal management in the motor driver PCB by considering these issues.

How Does The Dielectric Constant Affect Motor Driver PCB?

Dielectric constant (Dk) affects the performance of motor driver PCB. Its higher value promotes the dissipation factor, thermal stability, impedance control, etc. You can’t use this PCB having a high dielectric constant in high-frequency PCB applications.

Low Dk Motor Driver PCB

That’s why you need to prefer a low Dk value. This can promote the efficiency of your motor-driven PCB devices.

What Are The Considerations For Designing A Motor Driver PCB Layout?

There are some crucial considerations for designing a motor driver PCB layout.

Trace Width

You should apply a wide trace width for the PCB. It promotes resistance that leads to a better current carrying capacity. The trace width of the inner layers needs to be two times the outer layer traces.

Soldering

You have to consider soldering the exposed pads of the PCB surface. Solder voiding and the amount of solder paste are the main concerns in this section.

Volatile materials convert to gaseous form from the solid phase. So, the burning of these materials brings the solder out of the connections.

 Motor Driver PCB Layout

Thermal Vias

To ensure better performance, you have to apply thermal vias as much as you can. A proper application of thermal vias having suitable shapes develops the thermal conductivity of the PCB materials to a large extent.

Component Placement

This is another game-changing factor while you design a PCB layout. You need to place decoupling and bulk capacitors close to the power pins. Again, noise-producing components should keep away from the IC.

You have to ensure that maximum signals are routed on the outer layer of the PCB. Wath this video about the PCB design:

Copper Thickness

Thick copper is effective for low thermal resistance. So, you should consider 2 Oz copper while designing the PCB layout.

These considerations enable you to enjoy the excellence of it.

What Is The H-bridge Motor Driver PCB?

H-bridge motor driver PCB is a capital H-shaped special type circuit. Here, 4 switches are connected in such a way that the shape looks similar to the letter “H”. That’s why this is called an H-bridge motor driver PCB.

H-Bridge Motor Driver PCB Design

This circuit is effective to shift the polarity of load voltage in the PCB. You can find two switches having a series connection at both sides of the load.

Its notable benefits are

• Smooth change of rotational direction
• Highly efficient
• Regulating the dynamics of the motor.
• It is supremely space-effective
• Power loss is very low

H-bridge motor driver PCB has immense applications in versatile industries and robotics. Again, you can use it in battery-powered electric vehicles.

What Are The Required Components To Design The H-bridge Motor Driver PCB?

H-bridge motor driver PCB provides numerous positive effects on motor-based PCB projects. Its circuit design demands top-class components to render the best performance.

That’s why you need to know the necessary components to design an H-bridge motor driver PCB. Let’s have a look.

• N-P-N type BJT (Bipolar Junction Transistor).
• Diodes
• DC motor (around 12V)
• Multiple capacitors (100nF, 1F, etc are suitable)
• Terminals for motor driver PCB connection
• NAND gate
• NOT gate
• Voltage regulator
• Soldering components

H-bridge Motor Driver PCB Components

The most effective H-bridge motor driver PCB requires the most perfect components. You need to use the specific type of components concerning the manufacturer’s guidelines.

What Is A Stepper Motor Driver PCB?

Stepper motor driver PCB is a circuit solution to control stepper motors. It renders controlled energy to the stepper motor to function in different phases properly. You can control the current flow of stepper motors.

It receives the pulse signal from stepper motors which are rotating at step angles. Then it converts the input signal to a pulse signal to a definite angular displacement signal.

Stepper Motor Driver PCB

It is highly applicable in PCB projects where accuracy and speed regulation is a must. This PCB delivers some signals to control stepper motors.

There are usually three types of stepper motor driver PCB. Such as:

• Closed-loop
• Digital
• Integrated

How To Place Bypass Capacitors In Motor Driver PCB?

Bypass capacitors are also known as decoupling capacitors. They are applied in electric circuits to reduce AC noise. Bypass capacitors usually short the alternating current signals to the ground.

Bypass Capacitor in Motor Driver PCB

So, you need to know the best placement of bypass capacitors in this PCB. Here are some recommendations for your convenience.

• Place bypass capacitors near the power supply and ground.
• Connect small-value bypass capacitors before large-value capacitors. This process mitigates the effect of inductance.
• You should not place vias between active components and bypass capacitors. They must be placed on the very same layer of motor driver PCB surface.
• Bypass capacitors don’t need to be placed more than 0.5 cm away.
• You need to keep these capacitors close to the switch current source. It minimizes the parasitic inductance that leads to lessening high-frequency noise in the signal transmission.
• Bypass capacitors should not keep far from voltage regulators, current amplifiers, and power stages.
• The length to width ratio should not be more than 3:1.

If you follow these steps while designing a motor driver PCB, you can enjoy noise-free signal processing.

What Is The Use Of Bulk Capacitors In A Motor Driver PCB?

Bulk capacitors are crucial components in motor driver PCB. These capacitors have multiple uses which are very effective to promote the performance of this PCB. Such as:

• They resist the unusual extreme fall of output voltage during around zero-current conditions.
• Bulk capacitors usually lessen the current transient effect at low-frequency motor driver PCB.
• They deliver huge current to the motors during their switching period.
• Bulk electrolytic capacitors receive low-frequency and large-value currents to control the motor speed.

You need to place bulk capacitors close to the power. Again, minimum equivalent series resistance in bulk capacitors is effective for having the best output of motor driver PCB.

What Is The Impedance Control In Motor Driver PCB?

Impedance control has a great influence on the efficiency of a motor driver PCB. Inconsistent impedance affects the dielectric strength and thermal management of materials.

Motor Driver PCB Impedance Control

You have to ensure controlled impedance for having a low dielectric constant. Temperature change and copper thickness affect impedance. So, you should regulate the thickness of copper trace thermal properties of motor driver PCB materials.

How Do You Optimize The Thermal Performance Of Motor Driver PCB?

Impressive thermal management promotes the performance of motor driver PCB greatly. That’s why you should think about optimizing the thermal performance of this PCB.

Using Thermal Pads

Thermal pads are the most useful process for convenient heat dissipation in the PCB. They produce a path between the die and outer PCB layers. This path has minimum thermal resistance. So, additional heat can easily transfer in this way.

You need to strongly attach thermal pads with the ground planes of the motor driver PCB. Again, there should be a continuous copper plane between thermal pads and other portions of the PCB.

Motor Driver PCB Low Thermal Resistance

Regulating Copper Thickness

Copper thickness plays an essential role in promoting the thermal management of motor driver PCB. You can reduce the thermal resistance by using heavier copper on the PCB surface.

The following equation defines the relationship between copper thickness and the area of the PCB plane.

Thermal resistance,= (  length )/ area

So, these two are inversely proportional. You need to apply thicker copper on the PCB surface to ensure better heat conduction from the components. Usually, 1.5 Oz and 2 Oz copper render better service in this case.

Effective Thermal Vias

Thermal vias have an effective role in heat dissipation. They form a path between the top and ground layer of the PCB. you have to apply the via with proper hole size and diameter.

In most cases, you get the maximum benefit with a 7.874 mil hole size and 19.874 mil hole diameter. If you use a lower dimension, the thermal resistance will increase. This is not a good idea for optimizing the thermal performance of motor driver PCB.

What Is The Price Of A Motor Driver PCB?

Motor driver PCB delivers tremendous service at a very competitive price. Its cost depends on the manufacturer, materials, features, etc. In most cases, the price of one piece motor driver PCB varies from $5 to $50.

Cost-Effective Motor Driver PCB

You should think about your budget and requirements before buying a motor driver PCB. We are offering it at the most reasonable rate. Contact us.

What Are The Limitations Of Motor Driver PCB?

Motor Driver PCB offers tremendous benefits in the embedded circuits and the robotics industry. But, it has some limitations in terms of technicality.

Such as:

• It can’t deliver a consistent torque concerning the rotational speed.
• Some motor driver PCBs consume a high power that is not compatible with the load.
• Its inspection processes are complicated. So, you need more time to find the faults of the PCB.

Highly Functional Motor Driver PCB

These limitations can be mitigated by choosing the best motor driver PCB from a reliable manufacturer.

How Can You Verify The Performance Of Motor Driver PCB?

Motor driver PCB testing is an important matter to get a clear idea about its performance. Usually, automated inspections are very popular in recent times. But, manual inspections also provide you a perfect analysis of motor driver PCB.

Motor Driver PCB Testing

Now, we are going to explain some trustworthy inspection methods for your convenience.

Automated Optical Inspection (AOI)

This time-effective test evaluates the performance of a motor driver PCB by comparing its images with the ideal one. In this case, an AOI machine that incorporates high-quality image capturing cameras.

These cameras take 2D and 3D images of the PCB from different angles and different conditions. Then, the inspector compares these images with a flawless motor driver PCB.

You can identify the faulty solder joints, endpoints of different lines, current ratings, etc through this effective test. Its cost is higher than manual inspection methods.

Automated X-ray Inspection (AXI)

It is another automated inspection system. Here, the inspector applies a highly permeable X-ray to a motor driver PCB and detects all the defects easily. The AXI test is time-consuming as well as costly.

Flying Probe Test

The flying probe test detects the faults of motor driver PCB by using two probes in different terminal points of PCB. The flying use of probes is the key reason behind this name. You can check the wrong connections, soldering, voltage drop, wiring, etc efficiently.

This simple inspection method demands a lot of patience. On the contrary, flying probe tests don’t require unnecessary fixtures. That’s why you can verify the performance of motor driver PCB at a low cost. You can see the following video about the flying probe test:

How Do You Choose The Best Manufacturer Of Motor Driver PCB?

To ensure the optimum performance of a  motor driver PCB, it is a foremost task for you to choose the best manufacturer. You just need to consider some crucial factors to make the right choice.

Manufacturing Experience

You should find a manufacturer having a huge experience in motor driver PCB assembly. You can check the service history and different case studies to get an idea about the reliability of the manufacturer.

Quality Materials

Top-quality materials boost the performance of motor driver PCB to a great extent. That’s why you need to ensure that the manufacturer can supply high-standard materials during the manufacturing.

You can verify the motor driver PCB’s IPC standard. Usually, IPC Class 2 orClass 3 standard PCBs are the most effective in electric circuits. Again, A  trustworthy manufacturer must have certification of ISO and RoHS.

Technical support

Consumers should get full-time technical support from the PCB manufacturer. You should verify the customer’s review about the skill of the technical team and its efficiency.

Customer Care Service

This is an unavoidable factor in recent times. A reliable manufacturer of motor driver PCB must render 7/24 hours sales and customer care service.

Cost

You have to cross-check the price from different sources. Then, ensure that your chosen manufacturer can supply the best motor driver PCB at a competitive rate.

We have been rendering the best manufacturing of motor driver PCB for more than 15 years. Our motor driver PCB is IPC Class 2 standard and ISO-certified. Contact us to experience the maximum effectiveness of motor driver PCB.

Conclusion

Motor driver PCB is the most effective PCB for the automotive industry. Its numerous benefits promote the performance of electric circuits. This is an automatic choice for robotics design.

PCBMay provides the best manufacturing of motor driver PCB. We have tried to let you know the ins and outs of this highly functional PCB. We hope you won’t face any problems related to motor driver PCB manufacturing. Contact us for any further queries.