The two-phase stepping motor can achieve a no-load speed of up to 2000 rpm, but it is only a reference value, which has no practical significance, because the torque of the stepping motor decreases rapidly with the increase of the speed, and the speed is high. The torque is almost zero to a certain extent. Stepper motor increases the clock frequency without subdivision in the whole step (one turn per 200 pulses). People often find that the motor stalls when it reaches the maximum speed of no-load, so that it can't figure out the maximum speed. How much is it, even wondering if your system is normal, which is the real reason.
The running performance of the stepping motor at low speed has practical significance. It is generally 300 to 600 rpm. Considering that the user uses a mechanical deceleration device to carry the load, the motor must be supplied with sufficient torque. The normal speed of the motor is often selected. At tens of revolutions per minute, the motor has large power supply, high efficiency and low noise. As for the vibration problem, it must be solved by increasing the subdivision of the drive.
The formula for calculating the maximum no-load speed is:
No-load speed (rev / min) = 60 times the clock frequency / 200 times the number of subdivisions (M is the number of subdivisions)
If M=16, clock frequency = 150KHZ
Then the maximum no-load speed is approximately equal to 2800 rpm
That is, 60 times 150,000, divided by the product of 200 and 16, the result is obtained.
Ferrite is a polycrystal, sintered material with high electrical resistivity. The high resistance of ferrite makes eddy current losses extremely low at high frequencies. Therefore, unlike other magnetic components, ferrite can be used at considerably high frequencies.
We are professional in manufacturing high quality ferrite cores.
OUR company's leading products consist of Mn-Zn ferrite power series, including PC4 PC44 PC95, etc. and high-permeability material series H5K, H7K, H10K, H12K and H15K, etc. The product standard is executed in compliance with the international general standard, national standard and ISO9001 quality system.
Advantages:
1.Core material: PC40/ PC44 /PC95/H5K /H7K/ H10K/H12K and H15K
2.Features:High-frequency
3.Core cost:relatively low
4.Other tpye:EE, EEL, EI,EC,EF,EFD,ETD,EPC,PQ,RM,UU,EDR,EPC,
ET,EM,GU,POT,UF,UYF,FERRITE ROD,FERRITE FLUX ETC
5.Can be supplied with their match bobbin
6.Ferrite core are widely used in computers, tele-communication equipment, consumer's electronics such as TV, VTR and audio sets, industrial automation equipment and various kinds of electronic instruments, etc.As a leading magnets manufacturer in China, supported by our sophisticated quality system, we produce
top-quality soft ferrite, together with famous service.Our main products and each application are listed in the following:(For further information about our products.)
Application of bobbin and ferrite core
| Series | Feature |
| EE Core |
Applied in the switching power supply,main power transformer
|
| EF Core |
Applied in the switching power supply,main power transformer
|
| EFD Core |
Auxiliary powr transformer,main power transformer,choke coils
|
| EPC Core |
Auxiliary powr transformer,main power transformer
|
| PQ Core |
Applied in the linear filter,choke,pulse transformer, drive transformer
|
| UU Core |
Varieties of switching power supply transformer,choke coils ect.
|
| EC/EER/ER Core |
Applied in the linear filter ,current tranformer,smoothing choke coil,drive transformer, switching power transformers and chokes
|
| RM Core |
Filters, inductors and transformers for telecommunication other electronic equipment
|
| POT Core |
Filters for telecommunication equipment, and various kinds of inductors and transformers
|
| DR Core |
Choke coils, Peaking coils, Linearity coils, Alarm coils, Power choke coils, Fixed choke coils, Filtering coils,etc;
|
| EI Core |
Various kinds of transformers and chokes
|
| Toroidal core |
Pulse and wide-band transformers, various types of
|
FAQ
1-MOQ?
We will work hard to fit your MOQ .Small purchase quantity is ok.
2-Payment term?
T/T, Western Union, Paypal, Credit Card
3-Delivery port?
Shenzhen, Guangzhou, Zhongshan, Hongkong.
4-Shipping date?
About 7 days when we check the payment.
5-Do you produce the core and bobbin by yourself .
Yes.we have 2 head company,1 subsidiary company.one is bobbin factory,one is core factory,last one is transformer factory.
6-Where is your factory?
In ShaanxI
Mn-Zn Ferrite Core,Mn Zn Ei Core,Ferrite Core,Soft Ferrite Core
Shaanxi Magason-tech Electronics Co.,Ltd , https://www.magason-tech.com