TB300-06BL4

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The TB300-06BL4 is a type of adjustable speed DC driver, typically used in the low-power DC brushing motor control application. It is a high-efficiency and high-frequency driver capable of power transition, reverse protections, electronic brakes and tachometer feedback functions. It has built-in dc bus rated power of up to 30 kW, and can perform an average over-current protection. The driver has a working frequency range of 0 Hz to 20 kHz, ensuring higher speed and torque output of the motor.

It consists of various components like voltage input terminals, power transistor, coupling capacitor, PWM controller, dual-stage braking circuit and current and voltage monitor. The voltage input terminals are connected to a power switch, which controls the shoot-through current and the switching frequency of the power transistor. Coupling capacitor reduces the high frequency noise. PWM controller modulates the pulse width of the power transistor to maintain the desired current. Dual stage brake circuit applies a short braking pulse when the current is much higher than the desired value.

The motor drives the input voltage DC bus voltage which is monitored and regulated by current and voltage monitors. The voltage monitor compares the input voltage to pre-assigned reference voltage. The current monitor keeps track of the output current of the power transistor. The over-current protection is triggered when the current is higher than the preset value. The motor speed is determined by the output duty cycle of the PWM control. The braking circuit is activated if it detects a too-high current differential.

TB300-06BL4 is widely used in various motor control applications such as electric bicycles, wheelchair, forklift, crawler vehicles, carts, fan and pumps. Due to its high power transition capability, it can be used in high-power applications such as electric forklifts. The low-power feeding makes it ideal for applications such as electric bicycles, wheelchairs, and carts. It provides high speed and torque output, ensuring that the motor runs at its maximum possible speed. TB300-06BL4 is also used in fan and water pump applications, as they require switching power electronics at a very fast rate.

The TB300-06BL4 offers efficient, user-friendly and fast motor control. Its high-frequency operation ensures fast, and accurate operational of the motor. It has built-in over-current protection, braking circuit and voltage monitors which ensure a safe and secure working environment. Due to its wide operating frequency range, it can provide higher output speed and torque. This makes the TB300-06BL4 an ideal choice for many motor control application.

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