Actuating the brake release trips relay K₁ and applies 24 V to the brake. An RC network delays K₂'s actuation. When normally closed relay K₂ opens, resistor R_POWER reduces the voltage applied to the brake to the

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Other Materials from the Main Document

• Article «Switching regulator reduces motor brake's power consumption»
• Figure 1. Under continuous operation with 24 V applied, the brake's temperature stabilizes at 75 °C, or 53 °C above ambient temperature (Curve A). Applying a 24 V actuation pulse for a few seconds and then applying a 12 V holding voltage stabilizes the brak
• Figure 2. Actuating the brake release trips relay K₁ and applies 24 V to the brake. An RC network delays K₂'s actuation. When normally closed relay K₂ opens, resistor R_POWER reduces the voltage applied to the brake to the
• Figure 3. Applying the command input switches on PWM regulator IC₁, and capacitor C₁ holds IC₁'s feedback input low, applying a maximum output voltage of 24 V to the brake until C₁ fully charges. As the feedback voltage s
• Figure 4. After the actuation pulse applies full voltage to the brake, the regulator's output gradually decreases to the nominal holding voltage