Adjustable Frequency and Duty Cycle PWM Square Wave Signal Generator Module (KPWM)

🛠️ PWM Pulse Frequency Adjustable Duty Cycle Square Wave Module (PWM1) is an advanced rectangular wave signal generator designed to deliver precise control over frequency and duty cycle in various applications. This module features a dual mode operation, allowing users to select a duty cycle as low as 0.1%, making it highly suitable for a range of technical requirements.

🔍 This versatile module incorporates an LCD display that provides clear and intuitive feedback on settings, ensuring ease of use. The adjustment of PWM output frequency and duty cycle is facilitated by an encoder potentiometer, enabling quick and convenient modifications. Additionally, the module includes a lock function to prevent accidental changes during operation, enhancing reliability.

🛠️ The range of duty cycle limits can be tailored to specific needs, while the KPWM switch simplifies the process of toggling the PWM output with just one button press. With a broad frequency range and high precision, this module is adept at meeting diverse requirements.

🔧 Key Features:

• Normal Mode Frequency Range: 1 Hz to 150 KHz, with duty cycle adjustable from 1% to 100%.
• Fine Mode Frequency Range: 1 Hz to 15 KHz, with an ultra-low duty cycle adjustable from 0.0% to 0.1%.
• Automatic frequency range switching for efficient operation:
• 1 Hz increments for ranges 1 Hz to 999 Hz.
• 0.01 KHz increments for ranges 1.00 KHz to 9.99 KHz.
• 0.1 KHz increments for ranges 10.0 KHz to 99.9 KHz.
• 1 KHz increments for ranges 1 KHz to 150 KHz.

⚙️ The module’s display is designed for straightforward interpretation, with specific numeric formats indicating the frequency output. For example, a displayed value of 100 indicates a PWM output of 100 Hz, while 1.01 signifies a 1.01 KHz output.

Parameter Adjustments:

🔘 The frequency and duty cycle can be adjusted easily by rotating the potentiometer. The user experience is streamlined, with immediate feedback on adjustments made. Default settings can be retained for future sessions, ensuring no loss of calibration over time. Mode switching between normal and fine operation is achieved through simple button presses.

Technical Specifications:

• Operating Voltage: 3.3V to 30V
• Precision Frequency Range: 1 Hz to 150 KHz in normal mode, and 1 Hz to 15 KHz in fine mode
• Frequency Accuracy: Approximately 2% across all ranges
• Output Current Capacity: 5 mA to 30 mA
• Output Amplitude: Proportional to supply voltage
• Operating Temperature Range: -20°C to +70°C
• Weight: 42 grams

🛠️ Applications:

• Utilized as a square wave signal generator for experimental development.
• Ideal for generating square wave signals to control motor drives.
• Facilitates the creation of adjustable pulse outputs useful for microcontroller interfacing.
• Applicable in circuits requiring PWM modulation for dimming and speed control.

⚡ This module also supports serial communication with microcontrollers, adhering to TTL logic levels and standardized protocols for straightforward integration into your projects.