MSK4251: Low price control module with current loop, PEM package. Company advantage inventory.

feature:

75 Volt Motor Supply Voltage

10 amp output switch function

100% Duty Cycle High-Side Conductivity

Shot Through/Cross Conduction Protection

"True" four-quadrant torque control capability

Good accuracy around the zero torque point

Unsealed Isolation Bag

describe:

The MSK 4251 is a complete H-bridge MOSFET brushed motor control system in an electrically isolated plastic package

Bag. The hybrid is capable of delivering 10 amps of output current and 75 volts of DC bus voltage. this is normal

Protect the function of the bridge. Includes all bridge drive circuits, as well as all current sense and analog circuits

Required for closed loop current mode (torque) control. When PWMed, the transistors are modulated in a locked inverting

Mode for tightest control and maximum bandwidth. The provisions applicable to the different compensation schemes are as follows

included. MSK 4251 has good MOSFET thermal conductivity due to electrically isolated substrate/package

The design allows direct heat dissipation of the hybrid without insulators.

When starting the system with MSK 4251 for the first time, pay attention to the following points. First, because

For the small size of the module, shorting the output phases to ground or the DC bus will destroy the bridge. Should

Current limiting and control only applies to the current that actually flows through the bridge. The current sense resistor must

Watch the current so that the electronics can control it. If possible, start with a lower voltage and lower current

Powered to test connectivity and low current stability. Limited current supply, even if the controller is locked,

Dissipation is limited. By looking at the E/A OUT pin as the output of the error amplifier, a lot can be found about

Healthy and stable system. An even waveform with some circular triangle waves should be observed. as the current

Rising, the DC component of the waveform should move up or down. waveform at full current (with conventional power supply)

Should not exceed +4 volts positive peak, or -4 volts negative peak. Some audible noise will be heard

Commutation frequency. If the motor is squealing, it is unstable and should be cut off immediately unless power is applied

Due to the limited supply current, the power dissipation is not excessive. See all block diagrams for compensation calculations

Information used to determine amplifier gain for loop gain calculations. For power-up sequence, it should be ±15 volts

Power is supplied at the same time as or before the V+ voltage is applied.

MSK is a leading global designer and manufacturer of high frequency RF and microwave microelectronics, components and assemblies for the space, defense and telecommunications sectors.

Anaren's engineering expertise and products are utilized by major manufacturers around the world in everything from telecom networking products, fighter jammers, base station amplifiers to communications satellite systems. Our products are the result of innovative engineering, design, material processing and world-class mass production.

Committed to providing innovative solutions for the most challenging space and military applications. The technologies we develop include radar applications for space travel, electronic warfare and ballistic missile defense, as well as communications satellites.

The world's leading defense and aerospace prime contractors and subcontractors rely on Anaren for complex high frequency assemblies, packaging and standard military specification assemblies. Analen excels in this area because of our extensive high-frequency electronics expertise, vertical integration capabilities (from extensive design engineering, modeling and analysis, to sophisticated automated manufacturing and testing), and our dedication to to support Tier 1 contractors in their efforts to deliver tomorrow's multi-mission, multifunctional DoD technologies.

The Wireless Group develops telecommunications products for wireless infrastructure and fiber optic communications applications, such as passive components for cellular base stations and microcellular satellite TV receivers, as well as custom ceramic substrates for fiber optic communications.

Branded components led by the world-renowned Xinger flagship product, providing commercial wireless infrastructure and consumer electronics OEMs high performance, highly repeatable standard components. Our technology combines proprietary engineering and material processing techniques, we of products are produced globally using automated manufacturing in high volume.

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