The **M5M-5-R** refers to a specific series of miniature high-voltage power supplies manufactured by **UltraVolt** (now a brand under Advanced Energy). These modules are known for converting a low-voltage DC input into a high-precision, high-voltage DC output. --- ## 1. Technical Specifications The "M5M-5-R" nomenclature defines the specific operating parameters of the device: | Parameter | Specification | | :--- | :--- | | **Series** | M Series (Micro-sized) | | **Input Voltage** | 5V DC | | **Output Voltage Range** | 0 to 500V DC | | **Polarity** | -R (Reversible or specific Polarity designation)* | | **Max Power Output** | Typically 0.5W to 1W depending on specific sub-variant | | **Control Interface** | Analog (0 to 5V control signal) | *\*Note: In the UltraVolt M series, "R" often signifies remote control capabilities or specific mounting/shielding configurations.* --- ## 2. Key Electronic Components Internally, the M5M-5-R consists of several sophisticated stages to achieve high-voltage conversion in a tiny footprint: ### A. DC-to-DC Converter (Oscillator) The unit uses a high-frequency switching regulator. It takes the 5V input and "chops" it into a high-frequency AC signal. High frequency is used to keep the internal transformer size as small as possible. ### B. Step-Up Transformer A miniature ferrite-core transformer steps up the low-voltage AC signal to a high-voltage AC signal. ### C. Cockcroft-Walton Multiplier To reach 500V, the device employs a voltage multiplier circuit consisting of high-voltage diodes and capacitors. This stages the voltage upward while rectifying it back to DC. ### D. Feedback & Control Loop The module contains a sensing resistor string that monitors the output voltage. This feedback is sent to an internal error amplifier that adjusts the switching frequency or pulse width to maintain a stable, regulated output regardless of load changes. --- ## 3. Pinout and Connectivity Most M-Series modules utilize a standard pin configuration for PCB mounting: ```text Pin 1: Input Power (+5V DC) Pin 2: Power Ground Pin 3: Control Voltage (0-5V to set 0-500V output) Pin 4: Reference Voltage (Internal stable 5V output) Pin 5: High Voltage Ground Pin 6: High Voltage Output (0 to 500V) ``` --- ## 4. Typical Applications Due to its small size and precision, the M5M-5-R is commonly used in: * **Photomultiplier Tubes (PMT):** Providing bias voltage. * **Avalanche Photodiodes (APD):** Precise voltage for light detection. * **Mass Spectrometry:** Powering ion detectors. * **Piezoelectric Actuators:** Small-scale precision movement. ---